PHP Tutorials

Definition Full Form

Created By Year 1994 PHP 3 PHP 4 PHP 5 PHP 7 PHP 8

Web Development CLI Scripts API Development Desktop Apps

Open Source Cross Platform Easy Learning Community Support Database Support Hosting Support

Security Issues Not for Real Time Inconsistent Names No Multithreading

vs JavaScript vs Python vs Node.js vs ASP.NET

Download Installation Control Panel htdocs Folder phpMyAdmin Localhost Access

Download Installation www Folder Tray Icon phpMyAdmin

Ubuntu Installation Apache Start MySQL Start Web Root

Download Installation Start Servers htdocs Folder

PHP Image Run Container Docker Compose

Windows Download Windows Extract Add to PATH Linux PPA Linux Install macOS Brew

Version Command Info Function Modules List

php.ini File Find php.ini Common Settings

Standard Tag Short Tag Echo Short Tag Script Tag

Standard Closing Omission Whitespace Issue

Semicolon Required Last Semicolon

Spaces Ignored Tabs Ignored Newlines Ignored

Variables Case Sensitive Functions Not Sensitive Classes Not Sensitive Constants Case Sensitive

Single Line Single Line Hash Multi Line DocBlock PHPDoc

Dollar Prefix Assignment Operator

First Character Next Characters Reserved Keywords

Simple Variable With Underscore With Numbers Camel Case

Starting Number Special Characters Space in Name Hyphen Character

Different Variables Common Mistake

Value Assignment Copy by Value Copy by Reference

Double Dollar Complex Syntax

Reference Operator Reference Behavior

Local Scope Global Scope Function Parameters Static Variables Global Keyword GLOBALS Array

isset Function empty Function unset Function is_null Function

Superglobals $GLOBALS Array $_SERVER Array $_GET Array $_POST Array $_FILES Array $_COOKIE Array $_SESSION Array $_REQUEST Array $_ENV Array

Syntax Case Insensitive Return Value

Syntax Compile Time Class Constants

Uppercase No Dollar Sign

Global Scope Function Scope

No $ Sign Global by Default Cannot Change Value Types

defined Function constant Function constants Function

__LINE__ __FILE__ __DIR__ __FUNCTION__ __CLASS__ __METHOD__ __NAMESPACE__ __TRAIT__

Definition Quotes Heredoc Nowdoc

Definition Ranges Decimal Hexadecimal Octal Binary

Definition Also Called Ranges Precision

Definition Values Case Insensitive Truthy Values

Definition Indexed Array Associative Array Multidimensional

Definition Creation Property Access Method Call

Definition Assignment Case Insensitive Unset Variable

Definition Examples Not Serializable

gettype Function var_dump Function print_r Function debug_zval_dump is_string Function is_int Function is_float Function is_bool Function is_array Function is_object Function is_null Function is_resource Function is_numeric Function is_scalar Function is_callable Function is_iterable Function is_countable Function

String to Integer String to Float String to Boolean Integer to String Integer to Array Integer to Object Array to Object Object to Array

intval Function floatval Function boolval Function strval Function

Automatic Conversion String to Number Number to String

settype Usage settype Example Return Value

Addition Subtraction Multiplication Division Modulus Exponentiation

Simple Assign Add and Assign Subtract and Assign Multiply and Assign Divide and Assign Modulus and Assign Exponent and Assign Concatenate and Assign

Equal Value Identical Not Equal Value Not Equal Alternative Not Identical Greater Than Less Than Greater Than or Equal Less Than or Equal Spaceship Null Coalescing

Standard Ternary Shorthand Ternary

AND OR XOR NOT

Concatenation Concatenation Assignment

Union Equal Identical Not Equal Not Identical

At Sign

Backticks

Type Check

Basic Syntax Example Code

Basic Syntax Example Code

Basic Syntax Example Code

Definition Example Code

if Colon Syntax Usage

Basic Syntax break Keyword default Case Multiple Cases

PHP 8 Feature Default Pattern Strict Comparison

Syntax Example Infinite Loop

Syntax Example

Syntax Example Multiple Variables

Indexed Array Associative Array Reference Modifier Object Iteration

Basic Break Break Level

Basic Continue Continue Level

for Endfor while Endwhile foreach Endforeach

Basic Usage Warning Only Return Value

Basic Usage Prevent Duplicate

Basic Usage Fatal Error

Basic Usage Prevent Duplicate

set_include_path get_include_path

Return Value Example

Usage Example

Syntax Example

Valid Names Invalid Names Case Insensitive

Syntax Usage

return Statement Example Function Stops

No Return

Parameter Types Example

Syntax

Declaration Location Effect

Syntax Example Right Side Only

Syntax Example Effect

Syntax Example Usage

PHP 8 Syntax Example Any Order PHP 8.0 Skipping Defaults Order Independence Combine Positional

Syntax Example

Syntax Example Closure

PHP 7.4 Syntax Example Implicit Return PHP 7.4 Parent Scope No Multi Statement No Return Keyword

Local Variables Global Access global Keyword Usage Example

$GLOBALS Usage Example

static Keyword Behavior Example

Definition Example Limit

Definition call_user_func call_user_func_array is_callable Closure Example Array Map Example Array Filter Example usort Example

Closure Class bind Method bindTo Method call Method fromCallable Method Use Case

Three Dots Syntax Type Declaration Example Before PHP 5.6 func_num_args func_get_arg func_get_args

Definition array Function Short Syntax Example Access Element Modify Element Add Element Automatic Index

Definition array Function Short Syntax Example Access Element Modify Element Add Element

Definition Two Dimensional Three Dimensional Access Element Example Iteration

count Function sizeof Alias array_push array_pop array_shift array_unshift array_merge array_merge_recursive array_combine array_keys array_values array_key_exists in_array array_search array_reverse array_slice array_splice array_unique array_map array_filter array_reduce array_sum array_product array_rand shuffle range array_fill array_fill_keys array_pad array_chunk

sort rsort asort arsort ksort krsort usort uasort uksort natsort natcasesort

list Function list Example Short Syntax Short Example Skip Values Associative Array Nested

Array Unpacking Example String Keys Duplicate Keys

Single Quotes Double Quotes Heredoc Syntax Nowdoc Syntax

strlen str_word_count strrev strpos stripos strrpos strripos substr substr_replace str_replace str_ireplace str_repeat str_pad trim ltrim rtrim explode implode join strtolower strtoupper ucfirst ucwords lcfirst htmlspecialchars htmlspecialchars_decode htmlentities html_entity_decode strip_tags addslashes stripslashes md5 sha1 hash base64_encode base64_decode urlencode urldecode rawurlencode rawurldecode json_encode json_decode serialize unserialize parse_str http_build_query

printf sprintf sscanf vprintf vsprintf

strcmp strcasecmp strncmp strncasecmp strnatcmp strnatcasecmp similar_text levenshtein

strstr stristr strchr strrchr strpbrk

strtok Example

preg_match preg_match_all preg_replace preg_split preg_grep preg_quote

Definition Usage Example Security

Definition Usage Example Security

POST for Sensitive Data GET for Search

Definition Usage Caution

Definition HTTP_USER_AGENT REMOTE_ADDR REQUEST_METHOD REQUEST_URI QUERY_STRING SCRIPT_NAME PHP_SELF SERVER_NAME SERVER_ADDR SERVER_PORT HTTP_REFERER HTTPS HTTP_HOST DOCUMENT_ROOT

Definition name type tmp_name error size

Definition Usage Example

Definition Usage Example Start Required

Definition Usage Example

Definition Usage

GET Method POST Method action Attribute name Attribute method Attribute enctype Attribute

Required Field Email Validation Number Validation String Length Pattern Matching URL Validation Date Validation File Validation Confirm Password Checkbox Validation Select Validation

htmlspecialchars strip_tags filter_var Prepared Statements CSRF Token CSRF Generation CSRF Validation CAPTCHA reCAPTCHA Honeypot Rate Limiting Input Sanitization Output Escaping

Remember Values Select Dropdown Checkbox Radio Button

Form Enctype max_file_size Upload Directory move_uploaded_file is_uploaded_file File Type Validation File Extension Image Validation File Size Validation Secure Filename Unique Filename Error UPLOAD_ERR_OK Error UPLOAD_ERR_INI_SIZE Error UPLOAD_ERR_FORM_SIZE Error UPLOAD_ERR_PARTIAL Error UPLOAD_ERR_NO_FILE Error UPLOAD_ERR_NO_TMP_DIR Error UPLOAD_ERR_CANT_WRITE Error UPLOAD_ERR_EXTENSION Multiple File Upload Image Resize File Download

What is Session Session vs Cookie Session Lifecycle

session_start session_id session_name session_destroy session_unset session_regenerate_id session_status session_save_path

Session Hijacking Session Fixation Session Timeout Secure Cookie Flag HttpOnly Cookie SameSite Cookie

Store User ID Store Preferences Store Shopping Cart

Login System Logout System User Dashboard

What is Cookie

name value expires path domain secure httponly samesite

setcookie setrawcookie header Cookie

Remember Me User Preferences Analytics

Encrypt Cookie Data

fopen

r w a x

fread fgets fgetc file file_get_contents

fwrite fputs file_put_contents

fclose

feof

rewind ftell fseek

filesize file_exists is_file is_dir is_readable is_writable filemtime filectime fileatime pathinfo basename dirname realpath

copy rename unlink chmod chown chgrp

mkdir rmdir opendir readdir closedir scandir glob

fgetcsv fputcsv str_getcsv

json_encode file file_get_contents json_decode

date time mktime gmmktime strtotime getdate gettimeofday checkdate

d m Y H i s a l F

DateTime Object __construct format modify add sub diff setTimezone getTimezone setDate setTime createFromFormat getTimestamp setTimestamp

DateInterval Class format createFromDateString

DatePeriod Class Constructor Recurring Dates

DateTimeZone Class listIdentifiers getOffset

date_default_timezone_set date_default_timezone_get

Age Calculator Days Between Dates Add Days

preg_match preg_match_all preg_replace preg_replace_callback preg_split preg_grep preg_quote preg_last_error

Forward Slash Hash Symbol Tilde

Dot Caret Dollar Asterisk Plus Question Mark Curly Braces

Square Brackets Negated Class Range Hyphen

Digits Non Digits Word Characters Non Word Whitespace Non Whitespace

i Modifier m Modifier s Modifier x Modifier u Modifier

Capturing Group Non Capturing Group Named Group Backreference

Vertical Bar

Positive Lookahead Negative Lookahead

Positive Lookbehind Negative Lookbehind

Email Regex Pattern

URL Regex Pattern

Phone Regex Pattern

IP Address Regex

Username Regex

Password Strength Regex

class Keyword Class Naming Example Class

new Keyword Object Variable Multiple Objects

Property Declaration Property Types Property Initialization Nullable Properties Property Access Property Assignment

Method Declaration Method Return Type Method Parameters Method Call Method Chaining

$this Variable

Access Properties Call Methods

__construct Method Constructor Parameters Constructor Promotion Parent Constructor

__destruct Method Use Cases

extends Keyword Parent Class Child Class Method Override parent Keyword final Keyword final Class Multiple Inheritance

public Keyword protected Keyword private Keyword Property Best Practices

Getter Method Setter Method Validation in Setter Readonly Property

abstract Keyword Abstract Method Concrete Method Child Implementation

interface Keyword implements Keyword Multiple Interfaces Interface Inheritance Interface Constants Abstract vs Interface

trait Keyword use Keyword Multiple Traits Conflict Resolution Alias Method Trait Composition Properties in Traits Abstract Methods

static Keyword Method Call self Keyword parent Keyword

static Property Access Syntax self Access static Access

static Resolution get_called_class

__construct __destruct __get __set __isset __unset __call __callStatic __toString __invoke __clone __sleep __wakeup __serialize __unserialize __debugInfo __set_state

clone Keyword Shallow Copy Deep Copy __clone Method

Equal Operator Identical Operator

serialize Function unserialize Function Serializable Interface

namespace Keyword use Keyword as Keyword Fully Qualified Name Subnamespaces Multiple Namespaces Bracketed Syntax PSR-4

new class Constructor Extend Class Implement Interface Use Cases

Iterator Interface IteratorAggregate ArrayIterator ArrayObject

yield Keyword yield from Generator Object Memory Efficiency

ReflectionClass ReflectionMethod ReflectionProperty ReflectionParameter ReflectionAttribute Use Cases

Attribute Syntax Attribute Class Attribute Target Attribute Flags Repeatable Attribute Read Attributes

enum Keyword Basic Enum Backed Enum Enum Methods Enum Static Methods Enum Constants Enum in Switch Enum vs Class

MySQLi Extension

Procedural Connect OOP Connect Connection Parameters Error Check Set Charset Close Connection

Simple Query SELECT Query INSERT Query UPDATE Query DELETE Query

mysqli_fetch_assoc mysqli_fetch_object mysqli_fetch_array mysqli_fetch_all mysqli_num_rows mysqli_affected_rows mysqli_insert_id

Prepared Statement Benefits prepare Method bind_param Parameter Types execute Method store_result bind_result fetch Method get_result INSERT with Prepared UPDATE with Prepared DELETE with Prepared SELECT with Prepared

multi_query next_result

autocommit begin_transaction commit rollback Example

mysqli_error mysqli_errno mysqli_sqlstate

mysqli_real_escape_string

PDO Extension

Multiple Databases

PDO More Databases

PDO Constructor DSN String MySQL DSN Connection Options Error Mode Connection Check Close Connection

query Method exec Method

PDO FETCH_ASSOC PDO FETCH_OBJ PDO FETCH_BOTH PDO FETCH_CLASS fetch Method fetchAll Method fetchColumn rowCount

prepare Method bindParam bindValue execute Method Named Placeholders Question Mark Placeholders INSERT Prepared UPDATE Prepared DELETE Prepared SELECT Prepared Reuse Statement

beginTransaction commit rollBack inTransaction

errorInfo errorCode PDOException

setAttribute getAttribute ATTR ERRMODE ATTR DEFAULT FETCH MODE ATTR EMULATE PREPARES

lastInsertId

getColumnMeta

getAvailableDrivers

PHP Parse Error PHP Fatal Error PHP Warning PHP Notice PHP Deprecated

error_reporting display_errors log_errors

E_ALL E_ERROR E_WARNING E_PARSE E_NOTICE E_DEPRECATED E_STRICT

set_error_handler Handler Parameters restore_error_handler

try Block catch Block finally Block

Throwable Interface Exception Class throw Keyword

getMessage getCode getFile getLine getTrace getTraceAsString

Extend Exception Multiple Types Exception Hierarchies

Catch Multiple Catch All

throw in catch

Previous Exception

set_exception_handler restore_exception_handler

ErrorException Class Handler Throw

Error Logging Custom Error Page Error Monitoring

Overview Vulnerable Code Prevention Method PDO Prevention MySQLi Prevention Escape Function Validation Method Stored Procedure

Overview htmlspecialchars ENT_QUOTES Flag strip_tags Function filter_var Sanitize Output Escaping CSP Header Cookie Flag

Overview Token Generation Store Token Form Field Validate Token hash_equals Function SameSite Cookie Double Submit Referer Check

password_hash Function password_verify Function password_needs_rehash password_get_info PASSWORD_DEFAULT PASSWORD_BCRYPT PASSWORD_ARGON2I PASSWORD_ARGON2ID BCrypt Cost Argon2 Memory Argon2 Time Argon2 Threads Hash Length Best Practice

filter_var Function FILTER_VALIDATE_EMAIL FILTER_VALIDATE_URL FILTER_VALIDATE_IP FILTER_VALIDATE_INT FILTER_VALIDATE_BOOLEAN FILTER_VALIDATE_FLOAT FILTER_VALIDATE_REGEXP FILTER_SANITIZE_EMAIL FILTER_SANITIZE_URL FILTER_SANITIZE_NUMBER_INT FILTER_SANITIZE_NUMBER_FLOAT FILTER_SANITIZE_SPECIAL_CHARS filter_input Function filter_input_array Validation vs Sanitization

Type Validation finfo_file Function Extension Whitelist Image Validation Size Limit Secure Filename Unique Name Storage Location File Permissions Serve File Malware Scan

Session Hijacking Regenerate ID Session Timeout Secure Cookie Flag HttpOnly Cookie Flag SameSite Cookie Flag Disable Trans ID Database Storage Validation Method

Force HTTPS HSTS Header Secure Flag Cookies Proxy Support

X-Frame-Options X-Content-Type-Options Referrer-Policy Permissions-Policy

Content-Security-Policy default-src script-src style-src img-src connect-src report-uri

Overview Allow Origin Allow Methods Allow Headers Allow Credentials Preflight Request

Rate Limiting JWT Authentication API Keys OAuth 2.0 Input Validation Output Sanitization

.env Files getenv Function putenv Function

display_errors Off log_errors On error_log Path Custom Error Page

What is SSRF Allowlist URLs Disable Redirects Validate IP Address cURL Options Practical Example

What is XXE libxml_disable_entity_loader libxml_set_external_entity_loader DOMParser Options SimpleXML Options Practical Example

What is Path Traversal realpath Validation basename Function Path Whitelist Practical Example

What is Log Forging Remove Newlines JSON Encoding Practical Example

What is LDAP Injection ldap_escape Function Input Validation Practical Example

Basic Usage PRETTY PRINT UNESCAPED UNICODE UNESCAPED SLASHES NUMERIC CHECK FORCE OBJECT THROW ERROR

Basic Usage Associative True Depth Limit BigInt String

JSON_ERROR_NONE JSON_ERROR_DEPTH JSON_ERROR_STATE_MISMATCH JSON_ERROR_CTRL_CHAR JSON_ERROR_SYNTAX JSON_ERROR_UTF8

Read JSON File Write JSON File Pretty Print File

Validate JSON String

Complex Structures

Serialize Objects

Numeric Arrays Associative Arrays

Load from File Load from String Access Elements Access Attributes Iterate Elements XPath Query Modify Elements Add Child Element Add Attribute Remove Element Convert to String Namespaces Get Children Get Attributes

Load XML String Load HTML String Load HTML File Save XML Save HTML Create Element Create Text Node Create Attribute Append Child Insert Before Remove Child Get Element ID Get Elements Tag

Create Query Execute Query

Open File Read Node Get Node Type Get Node Name Get Node Value

Open Memory Start Document Start Element Write Element Write Attribute Write Text End Element End Document Get Output

Introduction Initialize Set Option Execute Request Close Session Get Error Get Error Number Get Info

CURLOPT_URL CURLOPT_RETURNTRANSFER CURLOPT_HEADER CURLOPT_TIMEOUT CURLOPT_FOLLOWLOCATION CURLOPT_MAXREDIRS

GET Request POST Request POST Fields POST Array POST JSON PUT Request DELETE Request

HTTP Headers Content-Type Authorization User Agent

SSL Verification Disable SSL Verify

HTTP Basic Auth

HTTP Proxy Proxy Authentication

Save Cookies Read Cookies

Upload File

Multi Init Add Handle Execute Multi Select Multi Get Content Remove Handle Close Multi

GET Request POST Request PUT Request DELETE Request

Bearer Token API Key

Definition

HTTP Methods

URL Structure

JSON Format

200 OK 201 Created 400 Bad Request 401 Unauthorized 403 Forbidden 404 Not Found 422 Unprocessable 500 Server Error

Success Field Message Field Data Field Errors Field

URL Versioning Header Versioning

API Keys JWT Tokens

Create Token Validate Token PHP Library

Implementation Headers

Limit Offset Page Parameter Response Metadata

Filter Parameters

Sort Parameters

Search Parameter

OpenAPI Specification

Postman Tool

Cross Origin

Consistent Format

Request Validation

API Logs

Basic Usage Parameters Headers Format Return Value Additional Headers Plain Text Email HTML Email HTML Images Limitations SMTP Config

Introduction Installation SMTP Setup SMTP Host SMTP Auth SMTP Username SMTP Password SMTP Secure SMTP Port Set From Add Recipient Add CC Add BCC Reply To Email Subject Email Body Alt Body Add Attachment HTML Format Send Email Error Info Gmail Setup Outlook Setup String Attachment Embed Image

Validate Format

Send Link

HTML Design

Database Queue

Prevent Spam

Alternative Library

Property Promotion Syntax Visibility

Parameter Names Example Any Order

Syntax Create Class Target Repeatable

Match Syntax Strict Comparison Default Pattern Multiple Conditions

Nullsafe Syntax Chaining

Union Syntax Nullable Union Example

WeakMap Class

Stringable Interface

str_contains str_starts_with str_ends_with

get_debug_type get_resource_id

Throw in Expression

Enum Keyword Pure Enum Backed Enum Enum Methods Enum Constants Enum in Switch From Method TryFrom Method

Readonly Keyword

Readonly Class

Callable Syntax

String Keys

Never Return Type

Fiber Introduction Fiber Start Fiber Resume Fiber Return

array_is_list

final Keyword

Intersection Syntax

Readonly Class

Complex Types

Constants in Traits

Randomizer Class

Constant Types

Class Constant Fetch

Validate JSON

Get Set Hooks

Public Get Private Set

array_find array_find_key array_any array_all

What is Composer Package Manager Inspiration

Download Composer Global Install Windows Installer Verify Install

Create File Name Field Description Field Type Field License Field Authors Field Require Field Require Dev Field Autoload Field Autoload Dev Field Scripts Field Minimum Stability Prefer Stable

Exact Version Caret Range Tilde Range Hyphen Range Wildcard Version Greater Than Less Than Dev Versions Stability Flags

composer install composer update composer require composer require dev composer remove composer show composer outdated composer why composer validate composer dump-autoload composer clear-cache composer self-update

Lock File Purpose Commit Lock File Version Control

Third Party Code autoload.php Do Not Commit

PSR-4 Standard PSR-4 Config PSR-0 Standard Classmap Autoload Files Autoload Dump Autoload

Official Repository Search Packages Submit Package

VCS Repository Path Repository Pear Repository

Pre Install Cmd Post Install Cmd Pre Update Cmd Post Update Cmd Pre Autoload Dump Post Autoload Dump Pre Package Install Post Package Install Execute PHP Script Execute Composer

composer.json Requirements Add Version Packagist Submission Autoload Setup

Classmap Optimization APCu Autoloader Production Build

Introduction Installation Version Test Class Test Method Test Naming Test Annotation

assertEquals assertSame assertTrue assertFalse assertNull assertNotNull assertEmpty assertNotEmpty assertCount assertContains assertNotContains assertStringContainsString assertStringNotContainsString assertMatchesRegularExpression assertFileExists assertFileEquals assertJson assertJsonStringEqualsJsonString

@dataProvider @depends @group @covers @coversMethod @large

setUp tearDown setUpBeforeClass tearDownAfterClass

expectException expectExceptionMessage expectExceptionCode

createMock getMockBuilder

expects willReturn willReturnCallback willThrowException with

once never exactly any

Configuration File directory Suite file Suite exclude

#NAME?

Xdebug Required #NAME?

One Assertion Per Test Test Names Clear Independent Tests

What is Laravel

Eloquent ORM Blade Templating Artisan CLI Routing System Migrations

Composer Create Laravel Installer Requirements

php artisan make:model php artisan make:controller php artisan make:migration php artisan migrate php artisan tinker php artisan route:list php artisan cache:clear

web.php File api.php File Route Methods Route Parameters Named Routes Route Groups

Make Controller Resource Controller Invokable Controller

Blade Files Blade Echo Blade Directives Blade Components

Model Creation Model Properties CRUD Operations Relationships

Schema Builder Up Method Down Method

Request Validation Form Request Rules List

php artisan make:auth Auth Facade Authentication Guards

What is Symfony

Reusable Components

Composer Create

bin/console

HttpFoundation Routing Validator DependencyInjection

Doctrine Introduction Entities Repositories

Twig Introduction

Double Brace Echo

Routing Configuration

What is CodeIgniter

Small Footprint

Download and Extract

Models Views Controllers

Config Files

Query Builder Class

What is WordPress

Actions Filters

Plugin Header Activation Hook Deactivation Hook

functions.php Template Files Template Hierarchy

register_post_type

Custom Queries

Introduction Enable Setting Memory Setting Validation Setting Reset Function

Introduction Installation Store Data Fetch Data Delete Data Check Exists Clear Cache

Introduction Installation PHP Extension Connect Server Set Data Get Data Delete Data Increment Value Decrement Value

Introduction Installation PHP Extension Connect Server Set Value Get Value Set Expiry Delete Key Increment Value Hash Operations Pub Sub

Output Buffering Check Cache Save Cache Serve Cache Cache Invalidation

Cache Results

Cache Hit Ratio Cache Stampede

What is PHP CLI

No HTTP Headers

Execute PHP File

php -a

php -r

php -S

php -S router.php

$argv Array

$argc Variable

$argv 0

$argv 1

php stdin

php stdout

php stderr

fopen stdin

fgets STDIN

fwrite STDOUT

fwrite STDERR

Parse Options

getopt a b

getopt option

exit 0 exit 1

getenv Function putenv Function

PHP SAPI

ANSI Codes

033 32m

033 41m

033 0m

CLI Progress

Format Table

CLI Spinner

Console Component

Extend Command

Input Interface

Output Interface

Cron Jobs

Definition Private Constructor Private Clone getInstance Method Database Example

Definition Simple Factory Factory Method Abstract Factory Payment Example

Definition Strategy Interface Context Class Payment Strategy Dynamic Change

Definition SplSubject Interface SplObserver Interface attach Method detach Method notify Method Event System

Definition Component Interface Concrete Component Decorator Class Caching Example Logging Example

Definition Target Interface Adaptee Class Adapter Class Payment Example

Definition Repository Interface Concrete Repository User Repository Repository Cache

Definition Constructor Injection Setter Injection Interface Injection Service Container Benefits

Definition Model View Controller Routing Dispatcher

Definition index.php Routing Logic Bootstrap

User Registration Password Hashing Login Validation Session Creation Remember Me Feature Password Reset Email Verification Two Factor Authentication Account Lockout Logout Function

Create Record Read Records Update Record Delete Record Search Functionality Pagination Feature Sort Records Export to CSV Import from CSV AJAX CRUD

User Endpoint User Show Endpoint User Update Endpoint User Delete Endpoint API Authentication JWT Implementation Rate Limiting API Versioning Error Handling Response Formatting JWT Authentication Product Endpoint Order Endpoint API Documentation

Upload Files List Files Preview Images Download Files Delete Files Rename Files Create Folders Move Files Search Files File Information

Add to Cart View Cart Update Quantity Remove Item Coupon System Calculate Total Checkout Process Order Confirmation Email Receipt Payment Integration

Create Post Edit Post Delete Post Display Posts Single Post View Categories Tags Comments System Post Search Post Pagination SEO Friendly URLs Database Schema Category Management Tag System Comment System Search Functionality Pagination Feature

Create Task Edit Task Delete Task Mark Complete Due Dates Priority Levels Filter Tasks Sort Tasks Search Tasks Task Dashboard

Build Form Validate Input Sanitize Data CSRF Protection CAPTCHA Integration Send Email Auto Reply Save to Database Admin Notification Spam Filtering

Statistics Cards Charts Integration Recent Activity User Management Role Management Settings Page Report Generation Export Data Activity Logs Notification System

Server Setup Client Connection Send Message Private Messages User Typing Online Status Message History File Sharing Emoji Support Notification Sounds

HTML to PDF Invoice Creation Report PDF Certificate Maker Table Layout Header Footer Watermark Add Password Protection Email PDF Batch Generation

Export to XLSX Multiple Sheets Format Cells Add Formulas Export from Database Export with Headers CSV Export

Read Excel File Validate Data Import to Database Error Reporting

Upload Images Create Thumbnails Display Gallery Lightbox View Image Categories Add Watermark Image Delete Bulk Upload Search Images Image Comments

Subscribe Form Double Opt-In Unsubscribe Link Manage Subscribers Create Campaign Send Newsletter Queue System Open Tracking Click Tracking Analytics Dashboard

Create Short URL Redirect Logic Custom Alias QR Code Generator Click Counter Analytics Page API Support Link Expiry Password Protection Bulk Shorten

Create Poll Display Poll Submit Vote Prevent Double Voting Show Results Results Chart Multiple Polls Poll Status Comments Section Export Results

Create Quiz Display Question Submit Answer Calculate Score Show Result Leaderboard Time Limit Random Questions Multiple Attempts Certificate Generation

Add Expense Edit Expense Delete Expense Categories Dashboard Monthly Report Yearly Report Budget Setting Chart Display Export Report

Product Management Add to Cart Function View Cart Page Update Quantity Remove Item Coupon System Calculate Total Checkout Process Order Confirmation Email Receipt Payment Integration

Ratchet Server Setup Client Connection Send Message Private Message User Typing Online Status Message History File Sharing Emoji Support Notification Sound

Database Connection Table Listing Generate Create Form Generate Read List Generate Update Form Generate Delete Feature Code Output Display Download Feature

cURL Requests DOM Parsing XPath Queries Regular Expressions Crawl Multiple Pages Delay Requests User Agent Spoofing Handle JavaScript Parse JSON APIs Save Scraped Data

Beanstalkd Setup Put Job in Queue Process Queue Retry Failed Jobs Delayed Jobs Priority Levels Queue Monitoring RabbitMQ PHP Redis Queue Database Queue

Event Class Listener Class Event Dispatcher Async Events WebSocket Push Laravel Events Logging Events User Notifications Email on Event

What is Middleware Before Middleware After Middleware Authentication Middleware Admin Middleware Rate Limit Middleware CORS Middleware Logging Middleware Custom Middleware

What is Container Bind Interface Resolve Class Singleton Binding Contextual Binding Service Providers Deferred Provider Tagged Services PSR-11 Container Container Aware

Create Migration Up Method Down Method Rollback Command Migrate Refresh Seed Database Faker Library Data Types Table Indexes Foreign Keys

Create Seeders Factory Pattern Relationships Seeding Environment Specific Truncate First Seed from CSV Seed with Images Database Refresh

OpenAPI Specification Swagger UI Generate from Code Postman Collection Redoc Tool Versioning in Docs Authentication Docs Request Examples Response Examples Error Documentation

Xdebug Profiler Blackfire io Tideways Service Memory Profiling Time Profiling Query Profiling Call Graph Profile in Production Compare Profiles Continuous Profiling

PHP Linter PSR Standards Code Sniffer Static Analysis Psalm Tool PhpStan Tool IDE Integration Git Hooks CI Integration Fix Automatically

GraphQL Introduction GraphQL Schema GraphQL Query GraphQL Mutation GraphQL PHP Library Resolvers Functions GraphQL vs REST GraphQL Client GraphQL Playground Nested Queries

What is Microservices API Gateway Service Discovery Inter Service Communication PHP Microservice Docker Containers Service Registry Circuit Breaker Distributed Tracing Centralized Logging

RabbitMQ Introduction RabbitMQ PHP Library Producer Code Consumer Code Exchange Types Queue Binding Message Acknowledgment Dead Letter Queue Kafka Introduction Apache Kafka RDKafka PHP

What is Webhook Create Webhook Endpoint Verify Webhook Signature Handle Retries Idempotency Handling Event Types List Stripe Webhooks GitHub Webhooks Webhook Debugging Webhook Security

Bref Introduction AWS Lambda Serverless Framework API Gateway Environment Variables Cold Start Database Connection File Storage Cost Optimization Local Development

Stripe Setup Stripe Checkout Payment Intent API Stripe Webhook Refund Process PayPal Setup PayPal Orders Razorpay Setup Subscription Billing Save Payment Method

Twilio Setup Send SMS Message Verify Phone Number Two Factor Authentication TextLocal API Africas Talking Message Queues Bulk SMS Sending SMS Delivery Status Opt Out Handling

PDF Extraction PDF Creation Word Document Processing Excel Advanced Formulas CSV Large Files ZIP Archive Creation ZIP Extraction Image EXIF Data Barcode Generation Markdown Parsing

OpenSSL Extension openssl_encrypt openssl_decrypt AES 256 Encryption Key IV Initialization Vector Sodium Extension sodium_crypto_secretbox Password Based Encryption Encrypt Database Fields

gzcompress gzuncompress gzencode gzdecode ZipArchive Class Compress Large Files Compress API Response Compress Database Backup Compression Level Zstandard Extension

serialize Format unserialize Security JSON Serialization MessagePack Protocol Buffers YAML Format Custom Serialization Object Graph Serialize Closure Performance Comparison

Locale Setting Gettext Implementation PO File Creation MO File Compilation Language Detection URL Based Language Session Based Language Database Translation Array Translation Fallback Language

WAI ARIA Attributes Alt Text for Images Form Labels Keyboard Navigation Color Contrast Font Size Scaling ARIA Landmarks Form Error Announcement Focus Management Accessible Tables

Data Consent Form Right to Access Right to Deletion Data Portability Cookie Consent Privacy Policy Page Data Breach Notification Age Verification Anonymize Data Data Retention Policy

Always Use Exceptions Log All Errors Custom Error Pages Try Catch Appropriately Finally Block Cleanup Global Exception Handler Error Reporting Level Display Errors Off

Always Use Prepared Statements Use PDO or MySQLi Close Connections Index Your Tables Limit Result Sets Use Transactions Don't Query in Loops Escape Like Wildcards Use Read Replicas

Validate All Inputs Sanitize All Outputs Use CSRF Tokens Implement Rate Limiting Hash All Passwords Use HTTPS Everywhere Regenerate Session ID Set Secure Cookies Use Content Security Policy File Upload Validation

Use PSR Standards Use Namespaces Single Responsibility Principle Don't Repeat Yourself Use Dependency Injection Comment Your Code Use Type Hints Return Types Use Strict Types Keep Functions Small

Use OPcache Use Single Quotes Unset Large Variables Cache Expensive Operations Limit Function Calls Use isset Not array_key_exists Use foreach Not while Limit Object Creation Use Generators Profile Your Code

Production Settings Development Settings Logging Setup

Separate Concerns Configuration Files

gitignore Rules Branch Strategy

PHPDoc Comments README File

Update Regularly Lock File Commit

Write Unit Tests Test Edge Cases

Git Pull Composer Install Migrate Database Clear Cache Restart Queue Restart Webserver

Deployer PHP Capistrano Envoy Rocketeer Forge Server Envoyer

GitHub Actions GitLab CI Jenkins Server Buddy CI Circle CI Travis CI Code Coverage Automated Testing Deploy on Pass

Use env Files Production Values Secret Management Vault Service CI CD Variables Server Environment Nginx Environment php-fpm Environment

Property Management System Property Search Form Property Details Page Image Gallery Slider Agent Contact Form Favorite Properties Compare Properties Maps Integration Mortgage Calculator Property Status Mark

Job Posting Form Job Listings Page Job Details View Apply for Job Resume Upload Employer Dashboard Candidate Dashboard Job Alerts Email Company Profiles Application Tracking System

Course Creation Course Catalog Video Lessons Quiz System Student Progress Certificate Generation Rating System Discussion Forum Payment Gateway Wishlist Feature

User Profiles Post Status News Feed Like System Comment System Friend Request Messaging System Notification System Hashtag Support Privacy Settings

Room Management Room Availability Booking Form Payment Integration Booking Confirmation Manage Bookings Cancel Booking Customer Reviews Special Offers Room Features List

Doctor Profiles Patient Registration Search Doctors Book Appointment Available Slots Appointment Reminder Patient Dashboard Doctor Dashboard Prescription Upload Feedback System

Product Management Stock Tracking Low Stock Alert Supplier Management Purchase Orders Barcode Generation Category Management Report Generation Export Inventory Multi Warehouse

Student Registration Teacher Profiles Class Management Subject Allocation Exam Management Marks Entry Report Card Generate Attendance Tracking Fees Collection Parent Portal

Create Ticket Ticket Categories Priority Levels Assign Agent Add Reply Ticket Status Attach Files Knowledge Base Email Notification Satisfaction Rating

Vendor Registration Vendor Dashboard Product Approval Vendor Commission Order Management Vendor Payout Vendor Review Coupon System Shipping Management Analytics Dashboard

var_dump Usage print_r Usage error_log Function trigger_error Function assert Function Xdebug Step Debugging Xdebug Breakpoints Xdebug Stack Trace Whoops Error Handler Clockwork Extension

Monolog Introduction Monolog Logger Log Levels Monolog Handlers Log Rotation Structured Logging Context Information Monolog Processors Monolog Formatters PSR-3 Logger

Xdebug Profiler Webgrind Tool PHPBench Blackfire Comparison Tideways UI Slow Log Analysis Memory Profiling Function Timing Request Profiling Production Profiling

Use Single Quotes Use isset Function Use foreach Loop Full Strict Comparison Avoid Function in Loop Use Static Methods Unset Large Variables Use Increment Operator Use Built-in Functions Use strpos Over Regex

Use Database Indexes Select Only Needed Limit Result Sets Avoid Select in Loops Use Query Cache Optimize Joins Use EXPLAIN Command Batch Insertions Use Connection Pooling Read Replicas

Full Page Cache Fragment Caching Opcode Caching Object Caching Cache Invalidation Cache Warming Cache Stampede Prevention CDN Usage Browser Caching HTTP Caching

OPcache Settings OPcache Interned Strings OPcache Max Files OPcache Validate Timestamps OPcache Revalidate Freq Preload Scripts Preload File JIT Compilation JIT Buffer Size JIT Tracing Mode OPcache Dashboard

Get Hook Set Hook Virtual Property Backed Property Readonly Hook Writeonce Hook Get Hook Syntax Set Hook Syntax Example Usage

Public Get Private Set Protected Get Private Set Public Get Protected Set Syntax Example Example Usage

array_find Function array_find_key Function array_any Function array_all Function

HTML5 Parsing DOMDocument HTML5 HTML5 Serialization

mb_trim Function mb_ltrim Function mb_rtrim Function mb_ucfirst Function mb_lcfirst Function

array_find Function array_find_key Function array_any Function array_all Function Practical Example

HTML5 Parsing DOMDocument HTML5 HTML5 Serialization Practical Example

mb_trim Function mb_ltrim Function mb_rtrim Function mb_ucfirst Function mb_lcfirst Function Example Usage

Property Types Class Expressions Pattern Matching Asynchronous Functions Module System

Property Types Class Expressions Pattern Matching Asynchronous Functions Module System Enum Improvements

Plugin Name Plugin URI Description Field Version Field Author Field License Field

do_action Function add_action Function remove_action Function has_action Function did_action Function current_action Function Action Priority Action Arguments

apply_filters Function add_filter Function remove_filter Function has_filter Function current_filter Function Filter Priority Filter Arguments

add_shortcode Function remove_shortcode Function shortcode_atts Function do_shortcode Function Nested Shortcodes Example Shortcode

register_post_type Function Labels Parameter Public Parameter Show UI Parameter Supports Parameter Menu Position Menu Icon Has Archive Rewrite Slug

add_post_meta Function get_post_meta Function update_post_meta Function delete_post_meta Function Meta Boxes Save Meta Box Validation Rules Sanitization Process

Query Arguments WP_Query Object The Loop have_posts Method the_post Method get_posts Method wp_reset_query Function Meta Query Taxonomy Query

Template Hierarchy index.php front-page.php single.php page.php archive.php category.php tag.php author.php date.php search.php 404.php functions.php style.css screenshot.png Theme Header Comment

get_header Function get_footer Function get_sidebar Function wp_head Hook wp_footer Hook body_class Function

the_post_thumbnail Function the_title Function the_content Function the_excerpt Function the_permalink Function the_author Function the_date Function comments_template Function paginate_links Function

Register Block Block Attributes Block Render Block Category Dynamic Blocks Block Styles

One To One One To Many Many To Many Has Many Through Polymorphic Relations

N Plus 1 Problem Constraints on Load Lazy Eager Loading

Local Scope Global Scope Anonymous Scope

Retrieved Event

Static Analysis Tool

Composer Command

Level 0 Level 1 Level 2 Level 3 Level 4 Level 5 Level 6 Level 7 Level 8 Level 9

phpstan.neon File Ignore Errors Baseline File

Advanced Static Analysis

Composer Command

psalm --init

Levels 1 to 8

@psalm-return @psalm-param @psalm-var

Prevent Security Issues

Extended Functionality

Static Analyzer

Composer Command

.phan/config.php

Coding Standards Fixer

Composer Command

PSR-12 Standard

See Changes Only

Fix Code Automatically

Detect Coding Violations

Composer Command

PSR1 PSR12

Show Violation Details

Auto Fix Violations

Automated Code Refactoring

Composer Command

Upgrade PHP Rules

Apply Refactoring

Preview Changes Only

Mess Detector Tool

Composer Command

Clean Code Rules

HTML XML Text

webonyx graphql-php

ObjectType Class

Root Query Object

Data Modification Root

Field Value Providers

Scalar Types

DateTime JSON Type

Query Syntax Checking

User Friendly Messages

Shared Data Across Resolvers

Annotation Based GraphQL

GraphQL for Laravel

Event Driven PHP

Composer Command

Main Execution Manager

Schedule Delayed Execution

Asynchronous Data Flow

Non Blocking Web Server

Async MySQL Queries

Async DNS Resolution

Deferred Result Handling

Concurrency Framework

Composer Command

Future Result Container

Multi Processing Support

Async HTTP Requests

Real Time Communication

High Performance Server

PECL Command

Async PHP Server

Lightweight Threads

Real Time Features

Fork of Swoole

Use Cases Comparison

RPC Framework

Interface Definition Language

Latest Protocol Version

Generate PHP Code

RPC Methods Names

Single Request Response

Multiple Response Messages

Multiple Request Messages

Both Sides Stream

PHP gRPC Extension

Extend Generated Class

Call Remote Methods

TLS SSL Token

Request Timeout

Status Codes

Custom Headers

Microservices Communication

Event Database

Store State as Events

Entity with Rules

Save Events First

Rebuild State

Load from Stream

Handle Schema Changes

Build Read Models

Read Models Lag

Event Store Implementation

Event Sourcing PHP

Performance Optimization

Command Query Separation

Write Operations

Read Operations

Data Transfer Object

Data Transfer Object

Process Command Logic

Process Query Logic

Route Commands

Route Queries

Write vs Read Models

Command Query Bus

CQRS Support

Strategic Design

Object with Identity

Immutable Object

Consistency Boundary

Entry Point

Data Access

Stateless Logic

Important Occurrence

Model Boundary

Common Vocabulary

Orchestrate Use Cases

Technical Implementation

Ports and Adapters

Email Address

User Account

Interface Contract

What is Docker

Docker Desktop Docker Engine

docker pull docker run docker ps docker stop docker rm docker images

FROM Directive RUN Directive COPY Directive WORKDIR Directive EXPOSE Directive CMD Directive ENTRYPOINT Directive

Official PHP Image Install Extensions Enable Extensions PECL Install Composer Install User Permission

Introduction compose.yml Service Definition Image Field Ports Field Volumes Field Environment Field Depends On Field docker-compose up docker-compose down PHP MySQL Setup PHP Nginx Setup Redis Container

Build Stage Runtime Stage Artifact Copy

Alpine Linux Layer Caching Cleanup Temp Files .dockerignore

Volume Mounting Xdebug Setup Hot Reload

Image Tagging Registry Push Deployment

K8s Overview

Pods Nodes Cluster Deployment Service ConfigMap Secrets

Deployment YAML Container Image Port Configuration Resource Limits Health Checks

ClusterIP NodePort LoadBalancer Ingress

Environment Variables ConfigMap Volume Secret Volume

Horizontal Scaling Auto Scaling

Rolling Update Rollback

CI CD Meaning

YAML Workflow On Trigger Jobs Definition Steps Sequence Setup PHP Action Install Dependencies Run Tests Cache Dependencies Deploy Step

.gitlab-ci.yml Stages Definition Job Script Artifacts Cache Directive

Introduction Pipeline as Code Blue Ocean Plugins

FTP Upload RSYNC SSH Deploy Docker Deploy Kubernetes Deploy

Test Before Deploy Use Environment Variables Parallel Jobs

Introduction Installation Application Name License Key Transaction Traces Error Tracking External Services

Introduction Installation Tracing Configuration Profiling Log Management

Introduction Metrics Export Counter Metric Gauge Metric Histogram Metric

Dashboard

Sentry Setup Sentry PHP SDK Capture Exception Release Tracking Bugsnag Setup

What is PHP PHP Full Form PHP vs JavaScript

Variable Scope Types Superglobals List

Type Juggling Example

== vs === Difference Null Coalescing Operator

switch vs match

Pass by Reference Anonymous Function Example

array_map vs foreach array_merge vs + Operator

strpos vs preg_match

Abstract vs Interface Traits Purpose Final Keyword Usage Magic Methods List

MySQLi vs PDO Prepared Statement Benefit

XSS Prevention Method CSRF Protection Token Password Hashing Function SQL Injection Prevention

Session vs Cookie session_regenerate_id Purpose

move_uploaded_file Purpose

try catch finally

OPcache Purpose Static Method Advantage

Constructor Promotion Benefit Match Expression Advantage

Palindrome Check

FizzBuzz Problem

Factorial Function

Fibonacci Series

Prime Number Check

Reverse String

Array Sorting

Remove Duplicates

Find Largest Number

Anagram Check

Count Vowels

Capitalize Words

Binary Search

Bubble Sort

Two Sum Problem

Array Rotation

Longest Word

URL Slugify

CSV Parser

JSON Formatter

Basic Coding Standard File Requirements Side Effects

Extended Coding Style Indentation Rule Line Length Visibility Keyword Control Structure Spaces Namespace Declaration Use Declarations

Autoloading Standard Class Naming File Location

HTTP Message Interface Stream Interface URI Interface

Container Interface Container Methods

Event Dispatcher

Request Handler

Simple Cache

HTTP Client

Parse Error Fatal Error Headers Already Sent Maximum Execution Time Memory Limit Error White Screen of Death Connection Refused Access Denied

Log to File Print Debug Xdebug Step Debugging

PHP Manual

PHP Watch

PHP Town Hall

Program With Gio The Codeholic

Stitcher io Brent Roose

Laravel News Reddit PHP

PHP Chat

PHP Town Hall

Beginner Level Intermediate Level Advanced Level Expert Level

PHP Developer Role Laravel Developer WordPress Developer Full Stack Developer

Enterprise Companies Startups Choice Remote Jobs

Entry Level Mid Level Senior Level

PHP 8 Progress JIT Compilation Static Analysis Community Growth

Keep Learning Build Projects Join Community Contribute Open Source

PHP Learning Path Resources List Community Links Career Advice

Complete Encyclopedia

imagecreatefromstring imageflip Function imagecropauto Function imagefilter Grayscale imagefilter Brightness imagefilter Contrast imagefilter Colorize imagefilter Edgedetect imagefilter Emboss imagefilter Blur imagefilter Pixelate imagettfbbox imagettftext imagecopymerge Practical Example

new Imagick Object readImage Method resizeImage Method cropImage Method rotateImage Method flipImage Method flopImage Method sharpenImage Method blurImage Method negateImage Method sepiaToneImage Method oilPaintImage Method roundCorners Method mergeImageLayers Method getImageBlob Method Practical Example

Locale Class Locale lookup NumberFormatter Class NumberFormatter Currency NumberFormatter Percent NumberFormatter Spellout DateFormatter Class DateFormatter Parse Collator Class Collator Compare MessageFormatter Class Transliterator Class Practical Example

ZipArchive Class open Method addFile Method addEmptyDir Method addFromString Method extractTo Method deleteName Method renameName Method setPassword Method getFromName Method Practical Example

ftp_connect Function ftp_login Function ftp_pasv Function ftp_chdir Function ftp_nlist Function ftp_get Function ftp_put Function ftp_delete Function ftp_mkdir Function ftp_rmdir Function ftp_chmod Function Practical Example

ssh2_connect Function ssh2_auth_password Function ssh2_auth_pubkey_file Function ssh2_exec Function ssh2_scp_recv Function ssh2_scp_send Function ssh2_sftp Function Practical Example

SoapClient Class SoapServer Class __call Method __getFunctions Method __getTypes Method SoapFault Exception WSDL Mode Non WSDL Mode SoapHeader Class Practical Example

ldap_connect Function ldap_bind Function ldap_search Function ldap_get_entries Function ldap_add Function ldap_modify Function ldap_delete Function ldap_compare Function ldap_first_entry Function ldap_next_entry Function Practical Example

Unexpected T_VARIABLE Unexpected T_STRING Unexpected T_IF Unexpected T_EOF

Class Not Found Call to Undefined Function Call to Member Function Cannot Redeclare Function Allowed Memory Exhausted Maximum Execution Time

Headers Already Sent Cannot Modify Header Division by Zero Invalid Argument Supplied file_get_contents Failed mysqli_fetch_assoc Error

Undefined Variable Undefined Index Undefined Offset Trying to Get Property

Function Deprecated Curly Brace String Access create_function Deprecated mysql_* Functions

Connection Refused Access Denied Unknown Database Table Doesn't Exist Duplicate Entry Syntax Error Deadlock Found

session_start Failed Cannot Start Session

UPLOAD_ERR_INI_SIZE UPLOAD_ERR_PARTIAL UPLOAD_ERR_NO_FILE UPLOAD_ERR_CANT_WRITE

JSON_ERROR_SYNTAX JSON_ERROR_UTF8 JSON_ERROR_DEPTH

SSL Certificate Error Connection Timeout HTTP Code 404 HTTP Code 403

Class Not Found Memory Limit Version Conflict Authentication Failed Rate Limit Exceeded SSL Certificate

error_reporting Setting display_errors Setting log_errors Setting error_log Setting memory_limit Setting max_execution_time max_input_time post_max_size upload_max_filesize max_file_uploads date.timezone Setting

session.save_handler session.save_path session.name session.gc_maxlifetime session.cookie_secure session.cookie_httponly session.cookie_samesite

opcache.enable opcache.memory_consumption opcache.max_accelerated_files opcache.revalidate_freq opcache.validate_timestamps opcache.jit opcache.jit_buffer_size

file_uploads upload_tmp_dir upload_max_filesize post_max_size max_file_uploads

extension_dir extension=php zend_extension

Composer Command

MessageComponentInterface

onOpen Method onMessage Method onClose Method onError Method

Server PHP File

JavaScript WebSocket

Connection Event Message Event Close Event

Installation Command Pusher Integration WebSocket Routes Event Broadcasting Laravel Integration

Chat Application Setup Notification System Live Dashboard

Persistent Connection

Bidirectional

Real time Games Trading Platform Collaborative Editing

Installation Command

Classification Overview SVC Classifier kNearestNeighbors NaiveBayes Classifier DecisionTree RandomForest

Regression Overview LinearRegression MultipleRegression LeastSquares

Clustering Overview KMeans DBSCAN

Association Rule Learning Apriori Algorithm Eclat Algorithm

Tokenization Stop Words Removal Stemming TfIdf Calculator

Confusion Matrix Cross Validation Training Test Split

Spam Detection Sentiment Analysis Product Recommendation Price Prediction Weather Prediction Stock Prediction Image Classification

Dataset CSV Loading Dataset Array Conversion Dataset Splitting

Save Model Load Model PHP Serialization Save Model File Load Model File Pickle Alternative

PHP Not for Deep Learning Large Dataset Performance PHP Memory Issues Training Speed Algorithm Availability

Small Scale ML Projects

Create Pipeline Add Transformer Add Estimator Fit Pipeline Predict Pipeline

Stratified Split KFold Split Random Split

Accuracy Score Precision Score Recall Score F1 Score Confusion Matrix Display

Normalization Standardization Missing Values Label Encoding One Hot Encoding

TensorFlow PHP ONNX Runtime

Installation Command

Web3 Class Eth Module Net Module Personal Module Shh Module

What is Blockchain Blocks Structure Proof of Work Consensus Algorithm

Bitcoin Basics Ethereum Basics

Contract Deployment Contract Call Contract Events

Create Wallet Private Key Storage Public Key Derivation

Send Transaction Check Balance Transaction Status

Create Token Token Transfer Token Balance

Infura API Alchemy API Web3 Provider

Create Wallet App Check Balance Tool Send ETH Script Smart Contract Interaction Crypto Payment Gateway

Introduction Installation Command Create Project Run App Window Management Menu System Tray Icon File Dialog Database Storage Settings Storage Keyboard Shortcuts Notifications

PHP Backend ExpressPHP Integration

Introduction Installation Window Creation Widgets Usage Event Handling CSS Styling

Introduction

Point of Sale System Inventory Management School Management Hotel Management

Installation Configuration Run Application

RESTful Endpoints JSON Response Format HTTP Status Codes Versioning Strategy

JWT Implementation OAuth2 Server API Keys Social Login

FCM Integration APNS Integration OneSignal API WebPush Library

Image Upload API Image Processing Cloud Storage

Optimize for Mobile Pagination Support Filters and Sorting

WebSocket Server Long Polling Server Sent Events

Data Sync Strategy Last Sync Timestamp

Caching Strategy Gzip Compression API Gateway

SSL Certificate Input Validation Rate Limiting

User Registration API User Login API Profile Management API Image Upload API Push Notification API

Minimum PHP Version Deprecated Features Constructor Change Reserved Keywords Error Handling MySQL to MySQLi Register Globals Magic Quotes Safe Mode

Minimum PHP Version Named Arguments Union Types Attributes Match Expression Stringable Interface Constructor Promotion Fatal Errors Deprecated Functions JSON Extension

MySQL Extension Removed Mcrypt Removed EREG Functions Removed Magic Quotes Removed

Static Analysis Tool Deprecated Detection Composer Check

Unit Tests Before Migration Regression Testing

Small Steps First Feature Toggle

PHP Version Update Extension Installation

No Longer Maintained Container Wrapper Gradual Rewrite API Layer Parallel Running

Install RabbitMQ

php-amqplib Package Connection Setup Queue Declaration Producer Code Consumer Code Exchange Types Queue Binding Message Acknowledgment Dead Letter Queue Delayed Messages RPC Pattern

Install Kafka

RdKafka Library Producer Configuration Producer Send Consumer Configuration Consumer Subscribe Consumer Consume Consumer Commit Partition Assignment Avro Serialization

Subscribe Pattern Publish Message

RabbitMQ vs Kafka Redis Pub Sub vs Queues

Email Sending Queue Image Processing Queue Report Generation Queue Webhook Delivery Queue Data Sync Queue

Queue Length Monitoring Failed Message Tracking Processing Time Tracking

Install Prometheus

prometheus.yml File

prometheus_client_php Counter Metric Gauge Metric Histogram Metric Summary Metric Expose Endpoint

Install Grafana

Add Prometheus Source Create Dashboard Alert Rules Variable Support

Database Query Count Cache Hit Ratio API Response Time Error Rate Tracking Business Metrics

ELK Stack Setup Monolog to Elasticsearch Log Analysis

Prometheus Alertmanager Email Alerts Slack Integration PagerDuty Integration

OpenTelemetry PHP Jaeger Setup Trace Propagation

GitHub Actions Full GitLab CI Full Jenkins Pipeline Circle CI Config Travis CI Config

PHPUnit Execution Code Coverage Report Static Analysis Run Linting Run

FTP Deployment RSYNC Deployment SSH Deployment Docker Build Kubernetes Apply Blue Green Deployment Canary Deployment

Environment Secrets Vault Integration AWS Secrets Manager

Composer Cache NPM Cache Docker Layer Cache

Matrix Builds Parallel Test Execution

CI Status Notifications Deployment Notifications

Laravel Deployment WordPress Deployment API Project Pipeline

Before Commit Code Quality Security Check Performance Check Error Handling

Before Deploy After Deploy

Authentication Authorization Session Management Data Validation File Security API Security Dependency Security Server Security

Code Optimization Caching Strategy Database Optimization Asset Optimization

Variables Constants Data Types Comments

if else switch match

for Loop while Loop foreach Loop

Define Function Return Type Arrow Function Anonymous Function

Create Array Add Element Remove Element Check Exists Array Functions

Create String String Functions

GET Data POST Data Session Data Cookie Data Server Data Files Data

MySQLi Connect PDO Connect Query Execute Fetch Data Prepared Statement Last Insert ID

Session Start Set Variable Destroy Session Regenerate ID

Set Cookie Get Cookie Delete Cookie

Read File Write File Delete File Check Exists Get Size

Check Upload Move File Get Error

Class Definition Object Creation Properties Methods Constructor Destructor Inheritance Abstract Class Interface Trait Static Magic Methods

Password Hash Password Verify Prevent XSS CSRF Token SQL Prevention Input Filter Session Secure Cookie Secure

Encode JSON Decode JSON Last Error Error Message

Initialize Set Options Execute Close Get Error Get Info

Current Timestamp Format Date Parse Date Create DateTime DateTime Format DateInterval Timezone

preg_match preg_match_all preg_replace preg_split preg_quote

What is PHP Answer PHP Full Form PHP vs JavaScript PHP vs Python

Local vs Global Static Variable

Type Juggling

== vs === ?? Operator

switch vs match

Pass by Reference Anonymous Function Arrow Function

array_map vs foreach array_merge vs +

strpos vs preg_match

Abstract vs Interface Trait Purpose final Keyword Magic Methods List

MySQLi vs PDO Prepared Statement Benefit

XSS Prevention CSRF Prevention Password Hashing SQL Prevention

Session vs Cookie session_regenerate_id

move_uploaded_file

try catch finally

OPcache Purpose Static Method Advantage

Constructor Promotion Match Expression Nullsafe Operator Union Types Attributes Enums Readonly Properties

Autoloading Version Constraints

PHPUnit Purpose Assertions Types