Tree¶
A tree is a datastructure which represents data as a set of connected nodes, where each node has only one parent.
PHP has no native tree.
Related packages : nicmart/tree
The definitive reference with all things PHP, and their definitions.
Navigation
Contents:
- Introduction
- Index
- $_COOKIE
- $_ENV
- $_FILES
- $_GET
- $_POST
- $_REQUEST
- $_SERVER
- $argc
- $argv
- $GLOBALS
- $HTTP_RAW_POST_DATA
- $php_errormsg
- $this
- __call() Method
- __callStatic() Method
- __clone() Method
- __get() Method
- __invoke() Method
- __isset() Method
- __serialize() Method
- __set() Method
- __set_state() Method
- __sleep() Method
- __toString() Method
- __unserialize() Method
- __wakeup() Method
- Absolute Value
- Absolute
- Abstract Class
- Abstract Keyword
- Abstraction Layer
- Accessibility
- Active Record
- Adapters
- Addition
- Alias Types
- Alias
- Allow Dynamic Properties
- Alternative Syntax
- And Operator
- Annotations
- Anonymous Catch
- Anonymous Class
- Anonymous Constant
- Anonymous Function
- Anonymous
- Application Programming Interface (API)
- Application Performance Management (APM)
- Array Append
- Arbitrary Number Of Argument
- Arcane
- Archive
- Argon2
- Argument
- ArgumentCountError
- ArithmeticError Error
- Arm
- Array With Curly Braces
- Array Spread
- Array Syntax
- Array
- array_key_exists()
- array_merge()
- ArrayAccess
- ArrayObject
- Arrow Functions
- Artifact
- As
- American Standard Code for Information Interchange (ASCII)
- Assertions
- Asset
- Assignations
- Associative Array
- Assumption
- Abstract Syntactic Tree (AST)
- Asymmetric Property
- Asymetric Visibility
- Asynchronous
- Attribute Class
- Attribute
- Authenticate
- Authorize
- Class Autoloading
- Automagic
- Automatic Index
- Autovivification
- Autowiring
- Backed Enum
- Backend
- Backward Incompatible
- BadFunctioncallException
- Balanced
- Base 64 Encoding
- basename
- Batch
- Bcmath
- Benchmarking
- Best Practices
- Binary Integer
- Binary Operator
- Binary
- Bitshift Operators
- Bitwise Operators
- Blind Variable
- Block
- Body
- Boolean
- Branch
- Break
- browscap
- Bucket
- Passing By Reference
- Passing By Value
- Byte
- C2 Framework
- Cache
- Call
- Callables
- Callbacks
- Case Sensitivity
- Case
- Cast Operator
- Catch
- Centralization
- Common Interface Gateway (CGI)
- Chaining New Without Parenthesis
- Chaining
- Character
- Child Class
- Continuous Integration
- Class Interface Trait Enumeration (CITE)
- Class Aliases
- Class Constants Visibility
- Static Constant
- Class Entities
- Class Hoisting
- Class Invasion
- Class Operator
- Class
- class_alias()
- Clean Architecture
- Clean Code
- Command Line Interface (CLI)
- Clone
- Close Tag
- ClosedGeneratorException
- Closure Binding
- Closure
- Coalesce Operator
- Code Coverage
- Coding Formatting
- Code Freeze
- Code Injection
- Code Reuse
- Code Smell
- Codepoint
- Coding Conventions
- Collection
- Collision
- Colon
- Comma
- Command Bus
- Comments
- Compact Array
- compact()
- Comparison
- Compatibility
- Compile Time
- Component
- Composer
- Composition
- Compression
- Concatenation
- Concrete Class
- Condition
- Conditional Structures
- Conditioned Structures
- Configuration
- Const
- Constant Expression
- Constants In Trait
- Constant Scalar Expression
- Constants
- constructor
- Container
- Continue
- Design By Contract
- Control Flow
- Control Structures
- Controller
- Convention
- Cookie
- Core
- Coroutine
- count()
- Countable Interface
- Coupling
- Coverage
- crc32
- Create, Read, Update And Delete (CRUD)
- Cryptography
- CSV Injection
- Comma Secparated Values (CSV)
- Ctype
- Client URL (CURL)
- Curly Brackets
- Custom
- Concurent Version System (CVS)
- Cyclomatic Complexity
- Dangling Reference
- Data Container
- Data Mapper
- Data
- Database
- Dataset
- Dates
- Datetime Trap
- DateTime
- Day Are Not 86400 Seconds
- Days In Month
- Database Abstraction Layer (DBA) extension
- Database Abstraction Layer (DBAL)
- Domain Design Driven (DDD)
- Dead Code
- Debugger
- Declaration
- declare Encoding
- declare()
- Decorator Pattern
- Deep Clone
- Default Parameter
- Default Value
- Default
- define()
- defined()
- Definition
- Dependency Injection Container
- Dependency Injection
- Deployment
- Deprecated
- Deprecation
- Dereferencing
- Design Pattern
- Destructor
- Dictionary
- Directives
- DirectoryIterator
- dirname
- Disable Classes
- Disable Functions
- Division
- DivisionByZeroError
- Disjunctive Normal Form (DNF)
- Do While
- DomainException
- DOM
- Double Quotes Strings
- Do…while
- Downtime
- Don’t Repeat Yourself (DRY)
- Data Source Name (DSN)
- Data Transfer Object (DTO)
- Duck Typing
- Dynamic Call
- Dynamic Class
- Dynamic Constant
- Dynamic Loading
- Dynamic Properties
- Dynamic Variable
- Dynamic
- each
- Early Binding
- Echo Tag
- Echo
- Elephpant
- Ellipsis
- Empty
- Text Encoding
- Encoding
- PHP Engine
- Entities
- Backed Enumeration
- Enumeration Case
- Enumeration (enum)
- Environment Variables
- Error Handler
- Error Handling
- Error Reporting
- Error
- Escape Character
- Escape Data
- HTML Escaping
- Escape Sequences
- Eval()
- Event Driven
- Event Loop
- Event Storming
- Chaining Exceptions
- Exception Handler
- Exception
- Execution Time
- Exit
- Explicit
- Exponent
- Exponential
- Expression
- extends
- Extensions
- extract()
- Facade
- Fallback Function
- Fallback To Global
- Switch Fallthrough
- False
- Falsy
- FastCGI
- feature-flag
- Feature
- Foreign Function Interface (FFI)
- File Extension
- File Mode
- File
- File System
- FileSystemIterator
- filter
- Final Class Constants
- Final Keyword
- Finally
- First Class Callable
- Fixture
- Flag
- Floating Point Numbers
- Fluent Interface
- For
- Foreach
- Form
- Format
- Forward Compatible
- Fossilized Methods
- PHP-FPM (FPM)
- Framework
- Front-end
- File Transfert Protocol (FTP)
- File Transfert Protocol Secure (FTPS)
- Fully Qualified Name
- Function Subscripting
- Functions
- Garbage Collection
- Generator
- Generics
- Class Getter Method
- gettext Extension
- git
- glob()
- Global Code
- Global Space
- Global Variables
- global Scope
- $GLOBALS
- God Object
- Goto
- GraphQL
- __halt_compiler()
- Handle
- PHP Handlers
- Hard Coded
- Hash Comparisons
- Cryptographic Hash
- hash() Function
- Hash
- Haystack
- Headless
- Heredocs
- Hexadecimal Integer
- Hexagonal Architecture
- hg
- Hosting
- .htaccess
- HTML Entities
- HTML Entity
- HTTP Code
- HTTP Encoding
- HTTP Headers
- Hyper Text Transfer Protocol (HTTP)
- Hyper Text Transfer Protocol Secure (HTTPS)
- Iconv
- Idempotent
- Identical Operator
- Identifier
- If Then Else
- Iffectation
- ImagickException
- ImagickPixelException
- Immutable
- implements
- Implicit
- Import
- include
- Inclusions
- Incoming Data
- Increment
- Indentation
- Index For Arrays
- Index For SQL
- Index
- Indexed Array
- Inequality
- Infinite
- Inflector
- Inheritance
- Inherited Variable
- INI
- Initialisation
- Injection
- instance
- instanceof
- Insteadof
- integer
- Interface
- Internationalization
- Interpolation
- Intersection Type
- Internationalization Functions
- InvalidArgumentException
- Type Invariant
- Code Inventory
- Invoke
- IP
- is_a()
- is_object()
- Interface Segregation Principle (ISP)
- Isset
- Iterable
- Iterator
- Just In Time (JIT)
- Jobqueue
- JavaScript Object Notation (JSON)
- JsonException
- Key-value Stores
- Keyword
- Goto Labels
- Linux Apache Mysql PHP (LAMP)
- Language Construct
- Laravel
- Late Static Binding
- Lazy Loading
- Lazy Objects
- Leading Numeric String
- Leading Zero Means Octal
- LengthException
- Letter Logical Bug
- Lexical Variable
- Library Loading
- libsodium
- Lint, Won’t Execute
- Linting
- List
- Literal Types
- Literal
- Local File Inclusion
- Local Variable
- Local Scope
- Locale
- Log
- Logical Operators
- LogicException
- Loops
- Liskov Substitution Principle (LSP)
- Machine Learning
- Magic Bytes
- Magic Constants
- Magic Hash
- Magic Methods
- Magic Numbers
- Magic Property
- Magic
- Man In The Middle
- Map
- Markdown
- Match
- max_execution_time
- Multibyte String
- mcrypt Extension
- Message Digest Algorithm 5 (MD5)
- Memoization
- Merge
- Message Queue
- Method
- Methodcall
- Micro-optimisation
- Microservice
- Microtime()
- Migration
- Mixed
- Mock
- Model
- Module
- Modulo
- Multidimensional Array
- Multiplication
- Mutation Testing
- Model - View - Controller (MVC)
- mysqli
- mysqli_sql_exception
- N+1 Query Problem
- Name
- Named Constructors
- Named Parameters
- Namespace Alias
- Namespace Name
- Namespaces
- Naming
- Not A Number (NAN)
- Native
- Needle
- negative-index
- Nested Attributes
- Nesting
- Neutral Element
- Never Type
- New In Initializers
- New Without Parenthesis
- new
- Non Breakable Spaces
- Non-static
- @, No Scream Operator
- Not Operator
- Nowdocs
- Null
- Nullable
- Null Pattern
- Null Safe Object Operator
- Nullsafe
- Numeric Separator
- Numeric String
- Obfuscation
- Object API
- Object Injection
- Object Invasion
- Object Nullsafe Operator ?->
- Object Operator ->
- Object Syntax
- Object Type
- Object
- Observer Design Pattern
- Open Closed Principle (OCP)
- Octal Integer
- Offset
- One Liner
- Opcache
- Opcode
- Open Tag
- OpenSSL
- Operand
- Operator Precedence
- Operators
- Optional Parameter
- Object Relational Mapping (ORM)
- Outgoing Data
- OutOfRangeException
- Overenginer
- Overflow
- Override Attribute
- Overwrite
- OWASP
- pack
- Packagist
- Pagination
- Parallel
- Parameter Removal
- Parameter
- parent
- Parenthesis
- Parse
- ParseError
- Partial Function
- Password API
- Password
- Path
- Process Control (pcntl)
- Perl Compatible Regular Expressions (PCRE)
- PHP Data Objects (PDO)
- PDOException
- PEAR
- PHP Extension C Library (PECL)
- Performance
- Permission
- Persistence
- PostgreSQL
- Phar
- PharException
- PHP Docker Container
- PHP Extensions
- FIG
- PHP foundation
- PHP Native Attribute
- PHP RFC
- PHP Tags
- PHP User Groups
- PHP Variables
- PHP Wrappers
- PHP
- php.ini
- PHP_INT_MAX
- PHPdoc
- phpinfo()
- PHPunit
- PHP Installer For Extensions (PIE)
- Pipeline
- Plugin
- Plus +
- Polyfill
- Polymorphism
- Port
- Portability
- Positional Parameters
- Precedence
- Predefined Constants
- PHP Predefined Exception
- Prepared Query
- Preprocessing
- Primitive Obsession
- print_r()
- Private Visibility
- PHP Profiler
- Promise
- Promoted Properties
- Property Hook
- Properties
- Protected Visibility
- Protocol
- Pseudo-variable
- PHP Standards Recommendations (PSR)
- Public Visibility
- Query String
- Query
- Queue
- Random
- RangeException
- Role Based Access Control (RBAC)
- RDBMS
- Readability
- Reading
- Readonly
- Real Numbers
- Recursion
- Recursive Array
- Refactoring
- Reference Count
- References
- Reflection
- ReflectionException
- Regular Expressions
- Register Globals
- Registry
- Relative Types
- Relative
- Relaxed Comparison
- Relaxed Keywords
- Relaxed Syntax
- Relay Function
- Release
- Rendering
- Reserved Names
- resource
- REST API
- Return Type
- Return Value
- Return
- Return Type Will Change
- Revision
- RFC
- Request For Change (RFC)
- Reserved For Future Use (RFU)
- Rounding
- Route
- Remote Procedure Call (RPC)
- Rubber Ducking Debugging
- Runtime Checks
- Sanitation
- Server Application Programming Interface (SAPI)
- Scaffolding
- Scalar Types
- Scaling
- Schema
- Scheme
- Scope Resolution Operator ::
- Scope
- Software Development Kit (SDK)
- Second Order SQL Injection
- Security
- Segmentation Fault
- Self-reference
- Self
- Semantics
- Semicolon
- Sensitive Parameter
- Serialization
- Session Fixation
- Session Hijacking
- Session
- Class Setter Method
- Shallow Clone
- Shard
- Shared Memory
- Shell
- Short Assignations
- Short Syntax
- Short Tags
- Short Ternary Operator
- Shutdown Function
- Sign
- Method Signature
- Silent Behavior
- Simple Switch
- SimpleXML
- Single Quotes Strings
- Singleton
- sleep
- Simple Network Management Protocol (SNMP)
- Simple Object Access Protocol (SOAP)
- Socket
- SOLID
- Sort
- Single Page Application (SPA)
- Spaceship Operator
- Special Constant
- Special Types
- Standard PHP Library (SPL)
- sprintf
- SQL Injection
- Simple Query Language (SQL)
- Sqlite3
- Square Brackets
- Single Responsability Principle (SRP)
- SSL
- Single Sign On (SSO)
- Standalone Types
- Stateful
- Stateless
- Statement
- Static Expression
- Static Method
- Static Property
- Static Variables
- static
- stdclass
- STDOUT
- Storage Systems
- Stream
- Strict Comparison
- strict_types
- String Increment
- String Interpolation
- String
- Stringable
- Strpos() Syndrome
- Structure
- Stubs Files
- subtype
- Sunsetting
- Superglobal Variables
- supertype
- Supply Chain Attack
- Support Vector Machine (SVM)
- SVMException
- SVN
- SWAP
- Switch Case
- Switch Default
- Switch
- Synchronous
- Syntax Error
- System Call
- System Event
- System
- Taint Analysis
- Task Runner
- TCP
- Template
- Temporary Expression
- Ternary Operator
- Test Data Provider
- Test Pyramid
- Test
- testdox
- Thread
- Three Dots
- throw
- Throwable
- Tick
- ransport Layer Security (TLS)
- toctou : Time Of Check To Time Of Use
- Token
- Trailing Comma
- Trait
- Transpile
- Traversable
- Traversal
- Tree
- True
- Truthy
- Try-catch
- Contravariance
- Covariance
- Type Coverage
- Property Type Declaration
- Type Juggling
- Type System
- Typed Property
- TypeError
- Type Error
- Typo
- Unary Operator
- Unbacked Enum
- Undefined
- Underflow
- UnexpectedValueException
- UnhandledMatchError
- Unicode
- Union Type
- Unpacking
- Unreachable Code
- Unserialization
- unset()
- Unused
- User Operations For Zend (UOPZ)
- Upgrade
- File Upload
- Universal Resource Identifier (URI)
- Universal Resource Locator (URL)
- Use Alias
- Use In Traits
- Use
- Useless
- Userland
- UTF-8
- UUencode Encoding
- Universally Unique IDentifier (UUID)
- Validation
- Value Object
- ValueError
- Var
- var_dump()
- Variable Arguments
- Variable Scope
- Variable Variables
- Variables
- variable_order
- Variadic
- VCS
- Version
- View In Presentation
- SQL Views
- View
- Virtual Machine
- Virtual Property
- Visibility
- Value Object (VO)
- Void
- Weak References
- World Wide Weab (WWW)
- Webscraping
- Webserver
- Websocket
- While
- Whitespace
- Class Wither Method
- Design Pattern Wrapper
- file://
- ftp://
- http://
- php://
- Stream Wrapper
- Wrapper
- Writable
- Writing
- Extensible Markup Language (XML)
- XMLReader
- XMLwriter
- XXTEA
- YAML Ain’t Markup Language (YAML)
- yield from Keyword
- Yield
- Yoda Condition
- Zombie Code
- Zval
- Thesaurus
- PHP Dictionary