Web Coding Center
PHP
Basic Syntax
Variables and Constants
Operators
Arrays
Strings
Conditionals
Loops
Functions
Code Insertion
Namespaces
Magical Constants
Classes and Objects
Scope
The static Keyword and Constants
Undefined Methods and Traits
Magic Functions
Serialization
Exceptions
SuperGlobals
Accessing Global Variables
Retrieving Form Data
Uploading File
Uploading Multiple Files
Cookies
Session Variables
Server Information
Clients IP Address Location
Variable Functions
Identity Booleans
Typing
Display
Array Functions
Searching and Counting
New Formation
Elements Conversion
Reduction
Symbols Table
Iteration and Selection
Difference and Intersection
Sorting
Date Functions
Creation and Setting
Date Formatting
Interval
Timezone
Checking and Parsing
Timestamp
Sun Motion
String Functions
ASCII Code
Reordering
Space Removal and Wrapping
Conversion
Counting
Group Searching
Splitting and Joining
Comparison
Searching
Substring
Replacement
Display and Formatting
HTML
Special Calculations
Math Functions
Trigonometry
Radix
Rational Numbers
Randomization
Function Functions
Invocation
Registration
Checking
Class Functions
Existence
Members
Filter
Filter Synopsis
Filter Examples
Checking Filters
External Data
Regular Expression Functions
Basics
Splitting
Matching
Replacement
Error Functions
Backtrace
Logging and Reporting
Error Handler
Error Generation
File System Functions
Directory
General Files
Reading Writing
Mail Functions
Simple Mail
HTML Mail
Alternative Part
Attachment
JSON Functions
Encoding
Decoding
Error Handling
Cryptography Functions
Password Hashing
General Hashing
Encryption
ZIP Compression Functions
Adding Files
Retrieving Files
Obtaining Information
Image Processing Functions
File Conversion
Resizing
Cropping
Watermarking
Translucent Watermarking
Adding Text
Grayscaling
Drawing
Program Execution Functions
With Output Displayed
Without Output Displayed
Network Functions
IP Address
System Logging
HTTP Header
URL
Socket Functions
Initialization
Connecting
Reading
Writing
Information
Chat App with Web Socket
Miscellaneous Functions
PHP Options
Connection and Browser
Formatting
Sleep and Halt
More String
Excluded Information
Rar Compression
PDF
Streams
FTP and HTTP
BC Math
Tokenizer
Predefined Interfaces and Classes
AJAX
Synopsis
Retrieving a Static File
Synchronous Transfer POST
Asynchronous Transfer GET
Upload Progress and FormData
PHP New Features
Constant Scalar Expressions
Variadic Functions
Argument Unpacking
Exponentiation
use function and use const
hash_equals
debuginfo
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Rar Compression
Rar is a very efficient archiver. You can read Rar archives without installing any external library. However, you can't write Rar archives in PHP because that is prohibited by the license.