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PHP 8.4.0 RC4 available for testing
Getting Started
Introduction
A simple tutorial
Language Reference
Basic syntax
Types
Variables
Constants
Expressions
Operators
Control Structures
Functions
Classes and Objects
Namespaces
Enumerations
Errors
Exceptions
Fibers
Generators
Attributes
References Explained
Predefined Variables
Predefined Exceptions
Predefined Interfaces and Classes
Predefined Attributes
Context options and parameters
Supported Protocols and Wrappers
Security
Introduction
General considerations
Installed as CGI binary
Installed as an Apache module
Session Security
Filesystem Security
Database Security
Error Reporting
User Submitted Data
Hiding PHP
Keeping Current
Features
HTTP authentication with PHP
Cookies
Sessions
Handling file uploads
Using remote files
Connection handling
Persistent Database Connections
Command line usage
Garbage Collection
DTrace Dynamic Tracing
Function Reference
Affecting PHP's Behaviour
Audio Formats Manipulation
Authentication Services
Command Line Specific Extensions
Compression and Archive Extensions
Cryptography Extensions
Database Extensions
Date and Time Related Extensions
File System Related Extensions
Human Language and Character Encoding Support
Image Processing and Generation
Mail Related Extensions
Mathematical Extensions
Non-Text MIME Output
Process Control Extensions
Other Basic Extensions
Other Services
Search Engine Extensions
Server Specific Extensions
Session Extensions
Text Processing
Variable and Type Related Extensions
Web Services
Windows Only Extensions
XML Manipulation
GUI Extensions
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简介 »
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PHP 手册
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Semaphore, Shared Memory and IPC
简介
安装/配置
安装
运行时配置
资源类型
预定义常量
Semaphore 函数
ftok
— Convert a pathname and a project identifier to a System V IPC key
msg_get_queue
— Create or attach to a message queue
msg_queue_exists
— Check whether a message queue exists
msg_receive
— Receive a message from a message queue
msg_remove_queue
— Destroy a message queue
msg_send
— Send a message to a message queue
msg_set_queue
— Set information in the message queue data structure
msg_stat_queue
— Returns information from the message queue data structure
sem_acquire
— Acquire a semaphore
sem_get
— Get a semaphore id
sem_release
— Release a semaphore
sem_remove
— Remove a semaphore
shm_attach
— Creates or open a shared memory segment
shm_detach
— Disconnects from shared memory segment
shm_get_var
— Returns a variable from shared memory
shm_has_var
— Check whether a specific entry exists
shm_put_var
— Inserts or updates a variable in shared memory
shm_remove
— Removes shared memory from Unix systems
shm_remove_var
— Removes a variable from shared memory
SysvMessageQueue
— The SysvMessageQueue class
SysvSemaphore
— The SysvSemaphore class
SysvSharedMemory
— The SysvSharedMemory class
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