PHP Dictionary

• $

  • $GLOBALS

  • $HTTP_RAW_POST_DATA

  • $_COOKIE

  • $_ENV

  • $_FILES

  • $_GET

  • $_POST

  • $_REQUEST

  • $_SERVER

  • $argc

  • $argv

  • $http_response_header

  • $php_errormsg

  • $this

• (

  • (void) Cast

• .

  • . Directory

  • . File

  • .. Directory

  • .env File

  • .htaccess

• @

  • @, No Scream Operator

• _

  • __CLASS__

  • __FILE__

  • __FUNCTION__

  • __LINE__

  • __METHOD__

  • __TRAIT__

  • __autoload

  • __call() Method

  • __callStatic() Method

  • __clone() Method

  • __get() Method

  • __halt_compiler()

  • __invoke() Method

  • __isset() Method

  • __serialize() Method

  • __set() Method

  • __set_state() Method

  • __sleep() Method

  • __toString() Method

  • __unserialize() Method

  • __unset() Method

  • __wakeup() Method

• A

  • Absolute

  • Absolute Name

  • Absolute Value

  • Abstract Class

  • Abstract Factory

  • Abstract Keyword

  • Abstract Method

  • Abstract Syntactic Tree (AST)

  • Abstraction

  • Abstraction Layer

  • Accessibility

  • Accountability

  • Active Record

  • Adapters

  • Addition

  • Agile

  • Ahead Of Time (OAT)

  • Algorithm

  • Algorithmic Complexity

  • Alias

  • Alias Types

  • Allow Dynamic Properties

  • Alternative Syntax

  • American Standard Code for Information Interchange (ASCII)

  • And Operator

  • Annotations

  • Anonymize

  • Anonymous

  • Anonymous Catch

  • Anonymous Class

  • Anonymous Constant

  • Anonymous Function

  • Application Performance Management (APM)

  • Application Programming Interface (API)

  • Application Server

  • Arbitrary Number Of Argument

  • Arcane

  • Architectural Decision Record (ADR)

  • Architecture

  • Archive

  • Argon2

  • Argument

  • ArgumentCountError

  • ArithmeticError Error

  • Arm

  • Array

  • Array Append

  • Array Callback

  • Array Element

  • Array Prepend

  • Array Spread

  • Array Syntax

  • Array With Curly Braces

  • ArrayAccess

  • ArrayObject

  • Arrow Functions

  • Artifact

  • As

  • Aspect Oriented Programming

  • Assertions

  • Asset

  • Assignations

  • Associative Array

  • Assumption

  • Asymmetric Property

  • Asymmetric Visibility

  • Async

  • Asynchronous

  • Attribute

  • Attribute Class

  • Audit Trail

  • Authentication

  • Authorize

  • Automagic

  • Automatic Index

  • Autovivification

  • Autowiring

  • abs()

  • array_column

  • array_combine()

  • array_key_exists()

  • array_keys()

  • array_map()

  • array_merge()

  • array_unique()

  • array_values()

  • array_walk()

• B

  • Back-tick

  • Backed

  • Backed Enum

  • Backed Property

  • BackedEnum

  • Backend

  • Backslash

  • Backtrace

  • Backward Incompatible

  • BadFunctioncallException

  • Balanced

  • Bang !

  • Base 64 Encoding

  • Batch

  • Bcmath

  • Benchmarking

  • Best Practices

  • Binary

  • Binary Integer

  • Binary Not Operator

  • Binary Operator

  • Bind

  • Bitfield

  • Bitmask

  • Bitshift Operators

  • Bitwise Operators

  • Blind Variable

  • Block

  • Bloom Filter

  • Body

  • Boilerplate

  • Boolean

  • Bootstrap

  • Bottleneck

  • Bracket

  • Bracketless

  • Branch

  • Breach

  • Break

  • Broken Object Level Authorization (BOLA)

  • Bucket

  • Bug

  • Byte

  • basename

  • browscap

  • bzip2 Extension

• C

  • C2 Framework

  • CAPTCHA

  • CSV Injection

  • Cache

  • Calendar

  • Call

  • Callable Arrays

  • Callables

  • Callbacks

  • Callstack

  • Camel Case

  • Canonical

  • Case

  • Case Sensitivity

  • Cast Operator

  • Catch

  • Centralization

  • Chaining

  • Chaining Exceptions

  • Chaining New Without Parenthesis

  • Character

  • Child Class

  • Circuit Breaker

  • Circular Reference

  • Class

  • Class Aliases

  • Class Autoloading

  • Class Constant Syntax

  • Class Constants Visibility

  • Class Entities

  • Class Getter Method

  • Class Hierarchy

  • Class Hoisting

  • Class Interface Trait Enumeration (CITE)

  • Class Invasion

  • Class Operator

  • Class Setter Method

  • Class Wither Method

  • Clean Architecture

  • Clean Code

  • Client URL (CURL)

  • Clone

  • Close Naming

  • Close Tag

  • Closed Source

  • ClosedGeneratorException

  • Closure

  • Closure Binding

  • Closure Class

  • Coalesce Operator

  • Code Architecture

  • Code Coverage

  • Code Formatter

  • Code Freeze

  • Code Generator

  • Code Injection

  • Code Inventory

  • Code Reuse

  • Code Review

  • Code Smell

  • Codepoint

  • Coding Conventions

  • Coding Formatting

  • Cognitive Complexity

  • Collection

  • Collision

  • Colon

  • Comma

  • Comma Secparated Values (CSV)

  • Command Bus

  • Command Line Interface (CLI)

  • Command Query Responsibility Segregation (CQRS)

  • Comments

  • Commit

  • Common Interface Gateway (CGI)

  • Common Vulnerabilities And Exposures (CVE)

  • Community

  • Compact Array

  • Comparison

  • Compatibility

  • Compile

  • Compile Time

  • Complexity

  • Compliance

  • Component

  • Composer

  • Composition

  • Compression

  • Concatenation

  • Concatenative

  • Concrete Class

  • Concrete Method

  • Concurency

  • Concurent Version System (CVS)

  • Condition

  • Conditional Structures

  • Conditioned Structures

  • Configuration

  • Connexion Persistence

  • Consistency

  • Const

  • Constant Case

  • Constant Combinaison

  • Constant Expression

  • Constant Scalar Expression

  • Constants

  • Constants In Trait

  • Constructor

  • Container

  • Content Management System (CMS)

  • Continue

  • Continuous Delivery (CD)

  • Continuous Integration (CI)

  • Contravariance

  • Control Flow

  • Control Flow Graph

  • Control Structures

  • Controller

  • Convention

  • Convert

  • Cookie

  • Copy On Write (COW)

  • Core

  • Coroutine

  • Countable Interface

  • Coupling

  • Covariance

  • Coverage

  • Create, Read, Update And Delete (CRUD)

  • Cron

  • Cross Site Request Forgery (CSRF)

  • Cross Site Scripting (XSS)

  • Cryptographic Hash

  • Cryptography

  • Ctype

  • Curly Brackets

  • Custom

  • Cyclic Redundancy Check 32-bit (CRC32)

  • Cyclomatic Complexity

  • class_alias()

  • compact()

  • constant()

  • count()

• D

  • DIRECTORY_SEPARATOR

  • DOM

  • Dangling Reference

  • Data

  • Data Access Object (DAO)

  • Data Container

  • Data Leak

  • Data Mapper

  • Data Source Name (DSN)

  • Data Structure

  • Data Transfer Object (DTO)

  • Database

  • Database Abstraction Layer (DBA) Extension

  • Database Abstraction Layer (DBAL)

  • Dataset

  • Datastack

  • DateInterval

  • DateTime

  • Dates

  • Datetime Trap

  • Day Are Not 86400 Seconds

  • Days In Month

  • Dead Code

  • Debugger

  • Declaration

  • Declarative Programming

  • Decorator Pattern

  • Decoupling

  • Deep Clone

  • Default

  • Default Parameter

  • Default Value

  • Defensive Programming

  • Definition

  • Delimiter

  • Dependency

  • Dependency Injection

  • Dependency Injection Container

  • Dependent Type

  • Deployment

  • Deprecated

  • Deprecation

  • Depth

  • Dereferencing

  • Design By Contract (DBC)

  • Design Pattern

  • Design Pattern Wrapper

  • Destructor

  • Dictionary

  • Diff

  • Dir

  • Directives

  • DirectoryIterator

  • Disable

  • Disable Classes

  • Disable Functions

  • Disjunctive Normal Form (DNF)

  • Distributed Denial Of Service (DDOS)

  • Division

  • DivisionByZeroError

  • Do While

  • Docblock

  • Docker Container

  • Documentation

  • Dollar /

  • Domain Design Driven (DDD)

  • Domain Name System (DNS)

  • DomainException

  • Don’t Repeat Yourself (DRY)

  • Dot Notation

  • Double

  • Double Arrow

  • Double Check

  • Double Quotes Strings

  • Downtime

  • Duck Typing

  • Dynamic

  • Dynamic Call

  • Dynamic Class

  • Dynamic Class Constant

  • Dynamic Constant

  • Dynamic Expression

  • Dynamic Loading

  • Dynamic Method

  • Dynamic Properties

  • Dynamic Variable

  • declare Encoding

  • declare()

  • default_charset

  • define()

  • defined()

  • delayedtargetvalidation

  • dirname

  • display_errors

• E

  • Early Binding

  • Echo

  • Echo Tag

  • Ecosystem

  • Edge Case

  • Elephpant

  • Ellipsis

  • Email

  • Embed

  • Emoji

  • Empty

  • Empty String

  • Enable

  • Encapsulation

  • Encoding

  • Entities

  • Enumeration (enum)

  • Enumeration Case

  • Environment

  • Environment Variables

  • Eponymous

  • Equal Operator

  • Error

  • Error Handler

  • Error Handling

  • Error Reporting

  • Escape Character

  • Escape Data

  • Escape Sequences

  • Eval()

  • Event Driven

  • Event Loop

  • Event Sourcing

  • Event Storming

  • Exception

  • Exception Handler

  • Execution Path

  • Execution Time

  • Exit

  • Explicit

  • Explicit Boolean Comparison

  • Exponent

  • Exponential

  • Expression

  • Expressive Interface

  • Extensible Markup Language (XML)

  • Extensions

  • each

  • exec

  • explode()

  • expose_php

  • extends

  • extract()

• F

  • Facade

  • Factory

  • Faker

  • Fallback Function

  • Fallback To Global

  • False

  • Falsy

  • FastCGI

  • FastCGI Process Manager (FPM)

  • Fatal Error

  • Feature

  • Feature Flag

  • Feature Testing

  • Fibers

  • File

  • File Extension

  • File Mode

  • File System

  • File Transfer Protocol (FTP)

  • File Transfer Protocol Secure (FTPS)

  • File Upload

  • FileSystemIterator

  • Final Class Constants

  • Final Keyword

  • Finally

  • Finite State Machine

  • First Class Callable

  • First In, First Out (FIFO)

  • Fixture

  • Flag

  • Flame Graph

  • Floating Point Numbers

  • Fluent Interface

  • Folklore

  • For

  • Foreign Function Interface (FFI)

  • Form

  • Format

  • Forum

  • Forward Compatible

  • Fossilized Methods

  • Framework

  • Framework Interoperability Group (FIG)

  • Front-end

  • Fully Qualified Name

  • Function Subscripting

  • Functional Programming

  • Functions

  • Functor

  • Fuzzing

  • file://

  • file_get_contents()

  • file_put_contents()

  • filter

  • fnmatch()

  • foreach()

  • ftp://

  • func_get_args()

• G

  • GNU Multiple Precision (GMP)

  • Garbage Collection

  • Generator

  • Generics

  • Global Code

  • Global Space

  • Global Variables

  • Glue

  • God Object

  • Golf

  • Goto

  • Goto Labels

  • Gradual Type Checking

  • GraphQL

  • Graphic Draw (GD)

  • gRPC (Google Remote Procedure Call)

  • get_class()

  • get_object_vars()

  • gettext Extension

  • git

  • glob()

  • global Scope

• H

  • HTML Entities

  • HTML Entity

  • HTML Escaping

  • HTTP Code

  • HTTP Encoding

  • HTTP Headers

  • Handle

  • Hard Coded

  • Hardening

  • Hash

  • Hash #

  • Hash Comparisons

  • Haystack

  • Headless

  • Heredocs

  • Heuristics

  • Hexadecimal Integer

  • Hexagonal Architecture

  • Honey Pot

  • Hosting

  • Hydratation

  • Hyper Text Transfer Protocol (HTTP)

  • Hyper Text Transfer Protocol Secure (HTTPS)

  • HyperText Markup Language (HTML)

  • hash() Function

  • hg

  • hrtime()

  • html_errors

  • http://

  • http_build_query()

• I

  • INF

  • INI

  • Iconv

  • Idempotent

  • Identical Operator

  • Identification

  • Identifier

  • Identity Comparison

  • If Then Else

  • Iffectation

  • Image

  • ImagickException

  • ImagickPixelException

  • Immutable

  • Imperative Programming

  • Implicit

  • Import

  • Inclusions

  • Incoming Data

  • Increment

  • Indentation

  • Index

  • Index For Arrays

  • Index For SQL

  • Indexed Array

  • Inequality

  • Infinite

  • Infinite Loop

  • InfiniteIterator

  • Inflector

  • Inheritance

  • Inherited Variable

  • Initialisation

  • Injection

  • Inlining

  • Insteadof

  • Interface

  • Interface Segregation Principle (ISP)

  • Internals

  • Internationalization

  • Internationalization Functions

  • Internet Protocol (IP)

  • Interpolation

  • Intersection Type

  • InvalidArgumentException

  • Invoke

  • Isset

  • Iterable

  • Iterator

  • IteratorAggregate

  • imagick

  • implements

  • implode()

  • in_array()

  • include

  • include_path

  • ini_set()

  • instance

  • instanceof

  • integer

  • is_a()

  • is_object()

  • iterator_to_array()

• J

  • JSON Lines (JSONC)

  • JSON Lines (JSONL)

  • JavaScript Object Notation (JSON)

  • Javascript

  • Jobqueue

  • JsonException

  • JsonSerializable

  • Jump

  • Just In Time (JIT)

  • json_decode()

  • json_encode()

• K

  • KISS

  • Key-value Stores

  • Keyword

• L

  • Language Construct

  • Laravel

  • Large Language Model (LLM)

  • Last In, First Out (LIFO)

  • Late Static Binding

  • Latin1

  • Lazy Loading

  • Lazy Objects

  • Leading Numeric String

  • Leading Zero Means Octal

  • Leak

  • LengthException

  • Letter Logical Bug

  • Lexical Variable

  • Library Loading

  • Licence

  • Lifecycle

  • Line Feed

  • Lint, Won’t Execute

  • Linting

  • Linux Apache Mysql PHP (LAMP)

  • Liskov Substitution Principle (LSP)

  • List

  • Literal

  • Literal Types

  • Local File Inclusion

  • Local Scope

  • Local Variable

  • Locale

  • Lock

  • Log

  • LogicException

  • Logical Operators

  • Loops

  • libsodium

• M

  • Machine Learning

  • Magic

  • Magic Bytes

  • Magic Code

  • Magic Constants

  • Magic Hash

  • Magic Methods

  • Magic Numbers

  • Magic Property

  • Mail

  • Maintenability

  • Maintenance

  • Man In The Middle

  • Map

  • Markdown

  • Marketplace

  • Match

  • Math

  • Memoization

  • Memory

  • Memory Leak

  • Merge

  • Message Digest Algorithm 5 (MD5)

  • Message Queue

  • Method

  • Method Collision

  • Method Compatibility

  • Method Overloading

  • Method Signature

  • Methodcall

  • Metrics

  • Micro-framework

  • Micro-optimisation

  • Micro-second

  • Microservice

  • Middleware Pattern

  • Migration

  • Minification

  • Minimum Viable Product (MVP)

  • Minus -

  • Minus One -1

  • Missing Validation

  • Mixed

  • Mock

  • Model

  • Model - View - Controller (MVC)

  • Model Context Protocol (MCP)

  • Module

  • Modulo

  • Monitoring

  • Monolith

  • Multi-byte

  • Multibyte String

  • Multidimensional Array

  • Multiplication

  • Multithreading

  • Multiton

  • Mutation Testing

  • MySQL

  • max_execution_time

  • mcrypt Extension

  • memory_limit

  • microtime()

  • mysqli

  • mysqli_sql_exception

• N

  • N+1 Query Problem

  • Name

  • Named Constructors

  • Named Parameters

  • Named Type

  • Namespace Alias

  • Namespace Name

  • Namespaced Name

  • Namespaces

  • Naming

  • Naming Conflict

  • Native

  • Needle

  • Nested Attributes

  • Nesting

  • Neutral Element

  • Never Type

  • New In Initializers

  • New Line

  • New Without Parenthesis

  • NoDiscard

  • Non Breakable Spaces

  • Non-instantiable

  • Non-numeric

  • Non-static

  • Nonce

  • Noop

  • Nosql Database

  • Not A Number (NAN)

  • Not Operator

  • Notice

  • Nowdocs

  • Null

  • Null Byte

  • Null Pattern

  • Null Safe Object Operator

  • Nullable

  • Nullsafe

  • Number

  • Numeric Base

  • Numeric Separator

  • Numeric String

  • negative-index

  • new

• O

  • OOP (Object Oriented Programming)

  • OWASP

  • Obfuscation

  • Object

  • Object API

  • Object Injection

  • Object Invasion

  • Object Nullsafe Operator ?->

  • Object Operator ->

  • Object Persistence

  • Object Relational Mapping (ORM)

  • Object Syntax

  • Object Type

  • Oblic Quotes

  • Observer Design Pattern

  • Octal Integer

  • Offensive Programming

  • Offset

  • One Liner

  • Onion Architecture

  • Opcache

  • Opcode

  • Opcode Specialisation

  • Open Closed Principle (OCP)

  • Open Source

  • Open Tag

  • OpenSSL

  • Operand

  • Operator Overloading

  • Operator Precedence

  • Operators

  • Optimisation

  • Optional Parameter

  • OutOfRangeException

  • Outgoing Data

  • Over-engineer

  • Overflow

  • OverflowException

  • Overloading

  • Override Attribute

  • Overriding

  • Overwrite

  • one

  • open_basedir

• P

  • PDOException

  • PEAR

  • PHP Constants

  • PHP Data Objects (PDO)

  • PHP Docker Container

  • PHP Engine

  • PHP Extension C Library (PECL)

  • PHP Extensions

  • PHP Foundation

  • PHP Group

  • PHP Handlers

  • PHP Installer For Extensions (PIE)

  • PHP Native Attribute

  • PHP Native Attributes

  • PHP Native Interfaces

  • PHP Natives

  • PHP Predefined Exception

  • PHP Profiler

  • PHP RFC

  • PHP Standards Recommendations (PSR)

  • PHP Tags

  • PHP User Groups

  • PHP Variables

  • PHP Wrappers

  • PHP, Hypertext Preprocessor (PHP)

  • PHP_INT_MAX

  • PHP_INT_MIN

  • PHPdoc

  • PHPunit

  • Packagist

  • Pagination

  • Paradigm

  • Parallel

  • Parameter

  • Parameter Removal

  • Parenthesis

  • Parquet

  • Parse

  • ParseError

  • Parser

  • Partial Function

  • Pascal Case

  • Passing By Reference

  • Passing By Value

  • Passphrase

  • Password

  • Password API

  • Path

  • Path Traversal

  • Pattern Matching

  • Performance

  • Perl Compatible Regular Expressions (PCRE)

  • Permission

  • Persistence

  • Phar

  • PharException

  • Pipe Operator

  • Pipeline

  • Plugin

  • Plus +

  • Pointer

  • Polyfill

  • Polymorphism

  • Port

  • Portability

  • Positional Parameters

  • Positive Integer

  • Post-increment

  • PostgreSQL

  • Pre-increment

  • Preappend File Directive

  • Precedence

  • Predefined Constants

  • Prefix

  • Preg_match

  • Prepared Query

  • Preprocessing

  • Primitive Obsession

  • Print

  • Private Visibility

  • Procedural Programming

  • Process

  • Process Control (pcntl)

  • Product Requirements Document (PDR)

  • Production

  • Promise

  • Promoted Properties

  • Propagation

  • Properties

  • Property Hook

  • Property Type Declaration

  • Protected Visibility

  • Protocol

  • Pseudo-type

  • Pseudo-variable

  • Public Visibility

  • Pull Request (PR)

  • Pure Function

  • pack

  • parent

  • parse_str()

  • php.ini

  • php://

  • php://input

  • php://memory

  • php://output

  • phpinfo()

  • precision

  • preg_split()

  • print_r()

  • printf()

• Q

  • Quality

  • Query

  • Query String

  • Question Mark ?

  • Queue

  • Quine

  • Quoted Printable

• R

  • REST API

  • RFC

  • RSA

  • Railroad Programming

  • Random

  • RangeException

  • Read Eval Print Loop (REPL)

  • Readability

  • Readable

  • Reading

  • Readline

  • Readonly

  • Real Numbers

  • Real Time

  • Recursion

  • Recursive Array

  • RecursiveIterator

  • RecursiveTreeIterator

  • Refactoring

  • Reference Count

  • References

  • Reflection

  • ReflectionException

  • Regexploit

  • Register Globals

  • Registry

  • Regular Expressions

  • Relational DataBase Management System (RDBMS)

  • Relative

  • Relative Name

  • Relative Types

  • Relaxed Comparison

  • Relaxed Keywords

  • Relaxed Syntax

  • Relay Function

  • Release

  • Remote Code Execution (RCE)

  • Remote Procedure Call (RPC)

  • Render

  • Renderer

  • Request For Change (RFC)

  • Reserved For Future Use (RFU)

  • Reserved Names

  • Retrieval Augmented Generation (RAG)

  • Return

  • Return Carriage

  • Return Type

  • Return Type Will Change

  • Return Value

  • Revision

  • Role Based Access Control (RBAC)

  • Rounding

  • Route

  • Rubber Ducking Debugging

  • Runtime Checks

  • range()

  • register_argc_argv

  • resource

• S

  • SNMP3

  • SOLID

  • SQL Database

  • SQL Injection

  • SQL Views

  • STDOUT

  • SVMException

  • SVN

  • Sandbox

  • Sanitation

  • Scaffolding

  • Scalar Types

  • Scaling

  • Schema

  • Scheme

  • Scope

  • Scope Resolution Operator ::

  • Second Order SQL Injection

  • Secret

  • Secure Hash Algorithm (SHA)

  • Secure Sockets Layer (SSL)

  • Security

  • Segmentation Fault

  • Self

  • Self-documenting

  • Self-reference

  • Semantic Versioning

  • Semantics

  • Semicolon

  • Sensitive Parameter

  • Separator

  • Serde

  • Serializable

  • Serialization

  • Server Application Programming Interface (SAPI)

  • Server Architecture

  • Server Sent Event (SSE)

  • Service

  • Service Container

  • Session

  • Session Fixation

  • Session Hijacking

  • Shallow Clone

  • Shard

  • Shared Memory

  • Shell

  • Short Assignations

  • Short Syntax

  • Short Tags

  • Short Ternary Operator

  • Shutdown Function

  • Side Effect

  • Sign

  • Silent Behavior

  • Simple Mail Transfer Protocol (SMTP)

  • Simple Network Management Protocol (SNMP)

  • Simple Object Access Protocol (SOAP)

  • Simple Query Language (SQL)

  • Simple Switch

  • SimpleXML

  • Single Page Application (SPA)

  • Single Quotes Strings

  • Single Responsability Principle (SRP)

  • Single Sign On (SSO)

  • Singleton

  • Slash /

  • Snake Case

  • Socket

  • Software Bill Of Material (SBOM)

  • Software Development Kit (SDK)

  • Software Development Life Cycle (SDLC)

  • Software-as-a-Service (SAAS)

  • Sort

  • Space

  • Spaceship Operator

  • Special Constant

  • Special Types

  • SplDoublyLinkedList

  • SplStack

  • SplStorageObjects

  • Sqlite3

  • Square Brackets

  • Stack

  • Standalone Types

  • Standard PHP Library (SPL)

  • Star *

  • State

  • Stateful

  • Stateless

  • Statement

  • Static Application Security Testing (SAST)

  • Static Call

  • Static Code Analysis (SCA)

  • Static Constant

  • Static Expression

  • Static Method

  • Static Property

  • Static Single Assignment Form (SSA)

  • Static Variables

  • Stealth Generator

  • Storage Systems

  • Stream

  • Stream Wrapper

  • Strict Comparison

  • String

  • String Increment

  • String Interpolation

  • Stringable

  • Strpos() Syndrome

  • Structure

  • Stubs Files

  • Sub (prefix)

  • Subclass

  • Subnamespaces

  • Suffix

  • Sunsetting

  • Superglobal Variables

  • Supply Chain

  • Supply Chain Attack

  • Support Vector Machine (SVM)

  • Swap

  • Switch

  • Switch Case

  • Switch Default

  • Switch Fallthrough

  • Synchronous

  • Syntax

  • Syntax Error

  • System

  • System Call

  • System Event

  • set_error_handler()

  • shell_exec()

  • sleep

  • sprintf

  • static

  • stdclass

  • str_contains()

  • strict_types

  • strpos

  • subtype

  • supertype

• T

  • TCP

  • Tabulation

  • Taint Analysis

  • Tarpit

  • Task

  • Task Runner

  • Technical Debt

  • Telemetry

  • Template

  • Temporary Expression

  • Ternary Operator

  • Test

  • Test Data Provider

  • Test Pyramid

  • Text Encoding

  • Thin Method

  • Thread

  • Three Dots

  • Throwable

  • Tick

  • Time Of Check To Time Of Use (TOCTOU)

  • Time Travel

  • To Crypt

  • To Decrypt

  • Token

  • Token Oriented Object Notation (TOON)

  • Tom’s Obvious Minimal Language (TOML)

  • Total Cost Of Ownership (TCO)

  • Trailing Comma

  • Trait

  • Transpile

  • Transport Layer Security (TLS)

  • Traversable

  • Traversal

  • Tree

  • Treemap

  • Troubleshoot

  • True

  • Truthy

  • Try-catch

  • Tutorial

  • Type Coverage

  • Type Error

  • Type Invariant

  • Type Juggling

  • Type System

  • TypeError

  • Typed Constant

  • Typed Property

  • Typo

  • testdox

  • throw

  • trigger_error()

  • trim

• U

  • URI Class

  • URI Extension

  • UTF-8

  • UUencode Encoding

  • Unary Operator

  • Unbacked Enum

  • Undefined

  • Underflow

  • Underscore

  • UnexpectedValueException

  • UnhandledMatchError

  • Unicode

  • Uninitialized

  • Union Type

  • UnitEnum

  • Universal Resource Identifier (URI)

  • Universal Resource Locator (URL)

  • Universally Unique IDentifier (UUID)

  • Unpacking

  • Unreachable Code

  • Unserialization

  • Unused

  • Upgrade

  • Use

  • Use Alias

  • Use In Traits

  • Used

  • Useless

  • User Datagram Protocol (UDP)

  • User Operations For Zend (UOPZ)

  • Userland

  • unset()

• V

  • VCS

  • Validation

  • Value

  • Value Object

  • Value Object (VO)

  • ValueError

  • Var

  • Variable Arguments

  • Variable Scope

  • Variable Shadowing

  • Variable Variables

  • Variables

  • Variadic

  • Vector Database

  • Vendor Lock-in

  • Version

  • View

  • View In Presentation

  • Virtual Machine (VM)

  • Virtual Property

  • Visibility

  • Visual Debt

  • Void

  • Vulnerability

  • var_dump()

  • variable_order

• W

  • Warning

  • Weak Cryptography

  • Weak References

  • Weakmap

  • Web-spider

  • WebRTC

  • Webscraping

  • Webserver

  • Webshell

  • Websocket

  • While

  • Whitespace

  • Wildcard

  • Word Combination

  • Workflow

  • World Wide Web (WWW)

  • Wrapper

  • Wrapper Pattern

  • Writable

  • Write Everything Twice (WET)

  • Writing

• X

  • XML Database

  • XMLReader

  • XMLwriter

  • XXTEA

• Y

  • YAML Ain’t Markup Language (YAML)

  • Yield

  • Yoda Condition

  • You Are Not Going To Need It (YAGNI)

  • yield from Keyword

• Z

  • Zend Engine

  • Zero Cost

  • Zombie Code

  • Zval

  • zend.assertions

  • zero

  • zip Extension

  • zlib extension

• ~

  • ~ Tilde