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在 PHP 8.1.0 之前，Fileinfo 扩展中用到了 1 个资源：finfo_open() 返回的魔数数据库文件描述符。

版权信息
序言 — 关于本手册
入门指引
- 简介 — PHP是什么并且可以做什么？
- 简明教程
安装与配置
语言参考
- 基本语法
- 类型
- 变量
- 常量
- 表达式
- 运算符
- 流程控制
- 函数
- 类与对象
- 概述
  — 命名空间概述
- 枚举
- 错误
  - 基础概要
  - PHP 7 错误处理
- 异常
  - 扩展（extend）异常处理类
- 纤程
- 生成器
- 注解
- 引用的解释
- 预定义变量
  - 超全局变量 — 在全部作用域中始终可用的内置变量
  - $GLOBALS — 引用全局作用域中可用的全部变量
  - $_SERVER — 服务器和执行环境信息
  - $_GET — 查询字符串变量
  - $_POST — 来自 HTTP POST 请求的表单数据
  - $_FILES — HTTP 文件上传变量
  - $_REQUEST — HTTP Request 变量
  - $_SESSION — Session 变量
  - $_ENV — 环境变量
  - $_COOKIE — HTTP Cookies
  - $php_errormsg — 前一个错误信息
  - $http_response_header — HTTP 响应头
  - $argc — 传递给脚本的参数数目
  - $argv — 传递给脚本的参数数组
- 预定义异常
- 预定义接口和类
- 预定义注解
- 上下文（Context）选项和参数
  - 套接字上下文选项 — 套接字上下文选项列表
  - HTTP context 选项 — HTTP context 的选项列表
  - FTP 上下文选项 — FTP 上下文选项列表
  - SSL 上下文选项 — SSL 上下文选项清单
  - Phar 上下文（context）选项 — Phar 上下文（context）选项列表
  - Context 参数 — Context 参数列表
  - Zip 上下文选项 — Zip 上下文选项列表
  - Zlib 上下文选项 — Zlib 上下文选项列表
- 支持的协议和封装协议
  - file:// — 访问本地文件系统
  - http:// — 访问 HTTP(s) 网址
  - ftp:// — 访问 FTP(s) URLs
  - php:// — 访问各个输入/输出流（I/O streams）
  - zlib:// — 压缩流
  - data:// — 数据（RFC 2397）
  - glob:// — 查找匹配的文件路径模式
  - phar:// — PHP 归档
  - ssh2:// — 安全外壳协议 2
  - rar:// — RAR
  - ogg:// — 音频流
  - expect:// — 处理交互式的流
安全
特点
函数参考
- 影响 PHP 行为的扩展
  - APCu — APC 用户缓存
    - 简介
    - 安装/配置
    - 预定义常量
    - APCu 函数
    - APCUIterator — APCUIterator 类
  - Componere
    - 简介
    - 安装/配置
    - Componere\Abstract\Definition — The Componere\Abstract\Definition class
    - Componere\Definition — The Componere\Definition class
    - Componere\Patch — The Componere\Patch class
    - Componere\Method — The Componere\Method class
    - Componere\Value — The Componere\Value class
    - Componere 函数
  - 错误处理 — 错误处理和日志记录
  - FFI — 外部函数接口
    - 简介
    - 安装/配置
    - 示例
    - FFI — C 代码和数据的主接口
    - FFI\CData — C Data Handles
    - FFI\CType — C Type Handles
    - FFI\Exception — FFI Exceptions
    - FFI\ParserException — FFI Parser Exceptions
  - OPcache
  - 输出控制 — 输出缓冲控制
  - PHP 选项/信息 — PHP 选项和信息
  - phpdbg — Interactive PHP Debugger
  - runkit7
  - uopz — User Operations for Zend
  - WinCache — Windows Cache for PHP
  - Xhprof — 层次式性能分析器
  - Yac
    - 简介
    - 安装/配置
    - 预定义常量
    - Yac — The Yac class
- 音频格式操作
  - OpenAL — OpenAL Audio Bindings
- 身份认证服务
  - Radius
- 针对命令行的扩展
  - Readline — GNU Readline
- 压缩与归档扩展
  - Bzip2
  - LZF
  - Phar
    - 简介
    - 安装/配置
    - 预定义常量
    - Using Phar Archives
    - Creating Phar Archives
    - What makes a phar a phar and not a tar or a zip?
    - Phar — The Phar class
    - PharData — The PharData class
    - PharFileInfo — The PharFileInfo class
    - PharException — The PharException class
  - Rar — Rar Archiving
    - 简介
    - 安装/配置
    - 预定义常量
    - 示例
    - Rar 函数
    - RarArchive — The RarArchive class
    - RarEntry — The RarEntry class
    - RarException — The RarException class
  - Zip
    - 简介
    - 安装/配置
    - 预定义常量
    - 示例
    - ZipArchive — ZipArchive 类
    - Zip 函数
  - Zlib — Zlib 压缩
    - 简介
    - 安装/配置
    - 预定义常量
    - 示例
    - Zlib 函数
    - DeflateContext — The DeflateContext class
    - InflateContext — The InflateContext class
- 加密扩展
  - Hash — 散列消息摘要框架
    - 简介
    - 安装/配置
    - 预定义常量
    - HashContext — HashContext 类
    - Hash 函数
  - Mcrypt
  - Mhash
  - OpenSSL
    - 简介
    - 安装/配置
    - 预定义常量
    - 密钥/证书参数
    - 证书验证
    - OpenSSL 函数
    - OpenSSLCertificate — OpenSSLCertificate 类
    - OpenSSLCertificateSigningRequest — OpenSSLCertificateSigningRequest 类
    - OpenSSLAsymmetricKey — OpenSSLAsymmetricKey 类
  - 密码散列算法
  - Rnp
    - 简介
    - 安装/配置
    - 预定义常量
    - 示例
    - Rnp 函数
    - RnpFFI — The RnpFFI class
  - Sodium
    - 简介
    - 安装/配置
    - 预定义常量
    - Sodium 函数
    - SodiumException — The SodiumException class
  - Xpass
- 数据库扩展
  - 数据库抽象层
    - DBA — Database (dbm-style) Abstraction Layer
    - ODBC — ODBC (Unified)
    - PDO — PHP 数据对象
  - 针对各数据库系统对应的扩展
    - CUBRID
    - dBase
    - Firebird/InterBase
    - IBM DB2 — IBM DB2, Cloudscape and Apache Derby
    - MongoDB — MongoDB Extension
    - MySQL — MySQL Drivers and Plugins
    - OCI8 — Oracle OCI8
    - PostgreSQL
    - SQLite3
    - SQLSRV — Microsoft SQL Server Driver for PHP
- 日期与时间相关扩展
  - Calendar
  - 日期/时间 — 日期和时间
    - 简介
    - 安装/配置
    - 预定义常量
    - 示例
    - DateTime — DateTime 类
    - DateTimeImmutable — The DateTimeImmutable class
    - DateTimeInterface — The DateTimeInterface interface
    - DateTimeZone — DateTimeZone 类
    - DateInterval — DateInterval 类
    - DatePeriod — DatePeriod 类
    - Date/Time 函数
    - 日期/时间 Error 和 Exception
    - Supported Date and Time Formats
    - 所支持的时区列表
    - DateError — The DateError class
    - DateObjectError — The DateObjectError class
    - DateRangeError — The DateRangeError class
    - DateException — The DateException class
    - DateInvalidOperationException — The DateInvalidOperationException class
    - DateInvalidTimeZoneException — The DateInvalidTimeZoneException class
    - DateMalformedIntervalStringException — The DateMalformedIntervalStringException class
    - DateMalformedPeriodStringException — The DateMalformedPeriodStringException class
    - DateMalformedStringException — The DateMalformedStringException class
  - HRTime — High resolution timing
    - 简介
    - 安装/配置
    - 示例
    - HRTime\PerformanceCounter — The HRTime\PerformanceCounter class
    - HRTime\StopWatch — The HRTime\StopWatch class
    - HRTime\Unit — The HRTime\Unit class
- 文件系统相关扩展
  - 直接 IO
  - 目录
    - 预定义常量
    - Directory — Directory 类
    - 目录函数函数
  - Fileinfo — 文件信息
    - 简介
    - 安装/配置
    - 预定义常量
    - Fileinfo 函数
    - finfo — finfo 类
  - 文件系统
  - Inotify
  - xattr
  - xdiff
- 国际化与字符编码支持
  - Enchant — Enchant spelling library
    - 简介
    - 安装/配置
    - 预定义常量
    - 示例
    - Enchant 函数
    - EnchantBroker — The EnchantBroker class
    - EnchantDictionary — The EnchantDictionary class
  - Gender — Determine gender of firstnames
    - 简介
    - 安装/配置
    - 示例
    - Gender\Gender — The Gender\Gender class
  - Gettext
  - iconv
  - intl — Internationalization Functions
    - 简介
    - 安装/配置
    - 预定义常量
    - 示例
    - Collator — The Collator class
    - NumberFormatter — The NumberFormatter class
    - Locale — The Locale class
    - Normalizer — The Normalizer class
    - MessageFormatter — The MessageFormatter class
    - IntlCalendar — The IntlCalendar class
    - IntlGregorianCalendar — The IntlGregorianCalendar class
    - IntlTimeZone — The IntlTimeZone class
    - IntlDateFormatter — The IntlDateFormatter class
    - ResourceBundle — The ResourceBundle class
    - Spoofchecker — The Spoofchecker class
    - Transliterator — The Transliterator class
    - IntlBreakIterator — The IntlBreakIterator class
    - IntlRuleBasedBreakIterator — The IntlRuleBasedBreakIterator class
    - IntlCodePointBreakIterator — The IntlCodePointBreakIterator class
    - IntlDatePatternGenerator — The IntlDatePatternGenerator class
    - IntlPartsIterator — The IntlPartsIterator class
    - UConverter — The UConverter class
    - Grapheme 函数
    - IDN 函数
    - IntlChar
    - IntlException — Exception class for intl errors
    - IntlIterator — The IntlIterator class
    - intl 函数
  - 多字节字符串
  - Pspell
    - 简介
    - 安装/配置
    - 预定义常量
    - Pspell 函数
    - PSpell\Dictionary — The PSpell\Dictionary class
    - PSpell\Config — The PSpell\Config class
  - Recode — GNU Recode
- 图像生成和处理
  - Exif — 可交换图像信息
  - GD — 图像处理和 GD
    - 简介
    - 安装/配置
    - 预定义常量
    - 示例
    - GD 和图像处理函数
    - GdImage — GdImage 类
    - GdFont — The GdFont class
  - Gmagick
    - 简介
    - 安装/配置
    - 预定义常量
    - 示例
    - Gmagick — The Gmagick class
    - GmagickDraw — The GmagickDraw class
    - GmagickPixel — The GmagickPixel class
  - ImageMagick — 图像处理(ImageMagick)
    - 简介
    - 安装/配置
    - 预定义常量
    - 示例
    - Imagick — The Imagick class
    - ImagickDraw — The ImagickDraw class
    - ImagickDrawException — The ImagickDrawException class
    - ImagickException — The ImagickException class
    - ImagickKernel — The ImagickKernel class
    - ImagickKernelException — The ImagickKernelException class
    - ImagickPixel — The ImagickPixel class
    - ImagickPixelException — The ImagickPixelException class
    - ImagickPixelIterator — The ImagickPixelIterator class
    - ImagickPixelIteratorException — The ImagickPixelIteratorException class
- 邮件相关扩展
  - IMAP — IMAP, POP3 和 NNTP
    - 简介
    - 安装/配置
    - 预定义常量
    - IMAP 函数
    - IMAP\Connection — The IMAP\Connection class
  - Mail
  - Mailparse
- 数学扩展
  - BC Math — BCMath 任意精度数学
    - 简介
    - 安装/配置
    - BC 数学函数
    - BcMath\Number — The BcMath\Number class
  - GMP — GNU Multiple Precision
    - 简介
    - 安装/配置
    - 预定义常量
    - 示例
    - GMP 函数
    - GMP — The GMP class
  - Math — 数学函数
    - 简介
    - 预定义常量
    - RoundingMode — The RoundingMode Enum
    - Math 函数
  - Statistics
  - Trader — Technical Analysis for Traders
- 非文本内容的 MIME 输出
  - FDF — Forms Data Format
  - GnuPG — GNU Privacy Guard
  - wkhtmltox
    - 简介
    - 安装/配置
    - wkhtmltox\PDF\Converter — The wkhtmltox\PDF\Converter class
    - wkhtmltox\PDF\Object — The wkhtmltox\PDF\Object class
    - wkhtmltox\Image\Converter — The wkhtmltox\Image\Converter class
  - PS — PostScript document creation
  - RpmInfo
  - XLSWriter
    - 简介
    - 安装/配置
    - Vtiful\Kernel\Excel — The Vtiful\Kernel\Excel class
    - Vtiful\Kernel\Format — The Vtiful\Kernel\Format class
- 进程控制扩展
  - Eio
  - Ev
    - 简介
    - 安装/配置
    - 示例
    - Watchers
    - Watcher callbacks
    - Periodic watcher operation modes
    - Ev — The Ev class
    - EvCheck — The EvCheck class
    - EvChild — The EvChild class
    - EvEmbed — The EvEmbed class
    - EvFork — The EvFork class
    - EvIdle — The EvIdle class
    - EvIo — The EvIo class
    - EvLoop — The EvLoop class
    - EvPeriodic — The EvPeriodic class
    - EvPrepare — The EvPrepare class
    - EvSignal — The EvSignal class
    - EvStat — The EvStat class
    - EvTimer — The EvTimer class
    - EvWatcher — The EvWatcher class
  - Expect
  - PCNTL — 进程控制
    - 简介
    - 安装/配置
    - 预定义常量
    - 示例
    - Pcntl\QosClass — The Pcntl\QosClass Enum
    - PCNTL 函数
  - POSIX
  - 程序执行 — 系统程序执行
  - parallel
    - 简介
    - 安装
    - Philosophy
    - Functional API
    - parallel\Runtime — The parallel\Runtime class
    - parallel\Future — The parallel\Future class
    - parallel\Channel — The parallel\Channel class
    - parallel\Events — The parallel\Events class
    - parallel\Events\Input — The parallel\Events\Input class
    - parallel\Events\Event — The parallel\Events\Event class
    - parallel\Events\Event\Type — The parallel\Events\Event\Type class
    - parallel\Sync — The parallel\Sync class
  - pthreads
    - 简介
    - 安装/配置
    - 预定义常量
    - Threaded — Threaded 类
    - Thread — Thread 类
    - Worker — Worker 类
    - Collectable — The Collectable interface
    - Pool — Pool 类
    - Volatile — The Volatile class
  - Semaphore — Semaphore, Shared Memory and IPC
    - 简介
    - 安装/配置
    - 预定义常量
    - Semaphore 函数
    - SysvMessageQueue — The SysvMessageQueue class
    - SysvSemaphore — The SysvSemaphore class
    - SysvSharedMemory — The SysvSharedMemory class
  - Shared Memory
    - 简介
    - 安装/配置
    - 示例
    - Shared Memory 函数
    - Shmop — The Shmop class
  - Sync
    - 简介
    - 安装/配置
    - SyncMutex — The SyncMutex class
    - SyncSemaphore — The SyncSemaphore class
    - SyncEvent — The SyncEvent class
    - SyncReaderWriter — The SyncReaderWriter class
    - SyncSharedMemory — The SyncSharedMemory class
- 其它基本扩展
  - GeoIP — Geo IP 定位
  - FANN — FANN (快速人工神经网络)
    - 简介
    - 安装/配置
    - 预定义常量
    - 示例
    - Fann 函数
    - FANNConnection — FANNConnection 类
  - Igbinary
  - JSON — JavaScript 对象表示法（JSON）
    - 简介
    - 安装/配置
    - 预定义常量
    - JsonException — JsonException 类
    - JsonSerializable — JSON 序列化接口
    - JSON 函数
  - Simdjson
    - 简介
    - 安装/配置
    - 预定义常量
    - Simdjson 函数
    - SimdJsonException — The SimdJsonException class
    - SimdJsonValueError — The SimdJsonValueError class
  - Lua
    - 简介
    - 安装/配置
    - Lua — Lua类
    - LuaClosure — LuaClosure类
  - LuaSandbox
    - 简介
    - 安装/配置
    - Differences from Standard Lua
    - 示例
    - LuaSandbox — The LuaSandbox class
    - LuaSandboxFunction — The LuaSandboxFunction class
    - LuaSandboxError — The LuaSandboxError class
    - LuaSandboxErrorError — The LuaSandboxErrorError class
    - LuaSandboxFatalError — The LuaSandboxFatalError class
    - LuaSandboxMemoryError — The LuaSandboxMemoryError class
    - LuaSandboxRuntimeError — The LuaSandboxRuntimeError class
    - LuaSandboxSyntaxError — The LuaSandboxSyntaxError class
    - LuaSandboxTimeoutError — The LuaSandboxTimeoutError class
  - 杂项 — 杂项函数
  - Random — 随机数生成器和相关随机函数
    - 简介
    - 预定义常量
    - 示例
    - Random 函数
    - Random\Randomizer — The Random\Randomizer class
    - Random\IntervalBoundary — The Random\IntervalBoundary Enum
    - Random\Engine — The Random\Engine interface
    - Random\CryptoSafeEngine — The Random\CryptoSafeEngine interface
    - Random\Engine\Secure — The Random\Engine\Secure class
    - Random\Engine\Mt19937 — Random\Engine\Mt19937 类
    - Random\Engine\PcgOneseq128XslRr64 — The Random\Engine\PcgOneseq128XslRr64 class
    - Random\Engine\Xoshiro256StarStar — Random\Engine\Xoshiro256StarStar 类
    - Random\RandomError — The Random\RandomError class
    - Random\BrokenRandomEngineError — The Random\BrokenRandomEngineError class
    - Random\RandomException — The Random\RandomException class
  - SeasLog
    - 简介
    - 安装/配置
    - 预定义常量
    - 示例
    - Seaslog 函数
    - SeasLog — The SeasLog class
  - SPL — PHP 标准库（SPL）
  - Stream
    - 简介
    - 安装/配置
    - 预定义常量
    - Stream 过滤
    - Stream Contexts
    - Stream Errors
    - 示例
    - php_user_filter — The php_user_filter class
    - streamWrapper — streamWrapper 类
    - Stream 函数
  - Swoole
    - 简介
    - 安装/配置
    - 预定义常量
    - Swoole 函数
    - Swoole\Async — The Swoole\Async class
    - Swoole\Atomic — The Swoole\Atomic class
    - Swoole\Buffer — The Swoole\Buffer class
    - Swoole\Channel — The Swoole\Channel class
    - Swoole\Client — The Swoole\Client class
    - Swoole\Connection\Iterator — The Swoole\Connection\Iterator class
    - Swoole\Coroutine — The Swoole\Coroutine class
    - Swoole\Coroutine\Lock — The Swoole\Coroutine\Lock class
    - Swoole\Event — The Swoole\Event class
    - Swoole\Exception — The Swoole\Exception class
    - Swoole\Http\Client — The Swoole\Http\Client class
    - Swoole\Http\Request — The Swoole\Http\Request class
    - Swoole\Http\Response — The Swoole\Http\Response class
    - Swoole\Http\Server — The Swoole\Http\Server class
    - Swoole\Lock — The Swoole\Lock class
    - Swoole\Mmap — The Swoole\Mmap class
    - Swoole\MySQL — The Swoole\MySQL class
    - Swoole\MySQL\Exception — The Swoole\MySQL\Exception class
    - Swoole\Process — The Swoole\Process class
    - Swoole\Redis\Server — The Swoole\Redis\Server class
    - Swoole\Runtime — The Swoole\Runtime class
    - Swoole\Serialize — The Swoole\Serialize class
    - Swoole\Server — The Swoole\Server class
    - Swoole\Table — The Swoole\Table class
    - Swoole\Timer — The Swoole\Timer class
    - Swoole\WebSocket\Frame — The Swoole\WebSocket\Frame class
    - Swoole\WebSocket\Server — The Swoole\WebSocket\Server class
  - Tidy
    - 简介
    - 安装/配置
    - 预定义常量
    - 示例
    - tidy — The tidy class
    - tidyNode — The tidyNode class
    - Tidy 函数
  - Tokenizer
    - 简介
    - 安装/配置
    - 预定义常量
    - 示例
    - PhpToken — The PhpToken class
    - Tokenizer 函数
  - URLs
  - V8js — V8 Javascript Engine Integration
    - 简介
    - 安装/配置
    - 示例
    - V8Js — The V8Js class
    - V8JsException — The V8JsException class
  - Yaml — YAML 数据序列化
  - Yaf — Yet Another Framework
    - 简介
    - 安装/配置
    - 预定义常量
    - 示例
    - 应用程序配置
    - Yaf_Application — Yaf_Application 类
    - Yaf_Bootstrap_Abstract — Yaf_Bootstrap_Abstract 类
    - Yaf_Dispatcher — Yaf_Dispatcher 类
    - Yaf_Config_Abstract — Yaf_Config_Abstract 类
    - Yaf_Config_Ini — Yaf_Config_Ini 类
    - Yaf_Config_Simple — Yaf_Config_Simple 类
    - Yaf_Controller_Abstract — Yaf_Controller_Abstract 类
    - Yaf_Action_Abstract — Yaf_Action_Abstract 类
    - Yaf_View_Interface — Yaf_View_Interface 类
    - Yaf_View_Simple — Yaf_View_Simple 类
    - Yaf_Loader — Yaf_Loader 类
    - Yaf_Plugin_Abstract — Yaf_Plugin_Abstract 类
    - Yaf_Registry — Yaf_Registry 类
    - Yaf_Request_Abstract — Yaf_Request_Abstract 类
    - Yaf_Request_Http — The Yaf_Request_Http class
    - Yaf_Request_Simple — Yaf_Request_Simple 类
    - Yaf_Response_Abstract — Yaf_Response_Abstract 类
    - Yaf_Route_Interface — Yaf_Route_Interface 类
    - Yaf_Route_Map — Yaf_Route_Map 类
    - Yaf_Route_Regex — Yaf_Route_Regex 类
    - Yaf_Route_Rewrite — Yaf_Route_Rewrite 类
    - Yaf_Router — Yaf_Router 类
    - Yaf_Route_Simple — Yaf_Route_Simple 类
    - Yaf_Route_Static — Yaf_Route_Static 类
    - Yaf_Route_Supervar — Yaf_Route_Supervar 类
    - Yaf_Session — Yaf_Session 类
    - Yaf_Exception — Yaf_Exception 类
    - Yaf_Exception_TypeError — Yaf_Exception_TypeError 类
    - Yaf_Exception_StartupError — Yaf_Exception_StartupError 类
    - Yaf_Exception_DispatchFailed — Yaf_Exception_DispatchFailed 类
    - Yaf_Exception_RouterFailed — Yaf_Exception_RouterFailed 类
    - Yaf_Exception_LoadFailed — Yaf_Exception_LoadFailed 类
    - Yaf_Exception_LoadFailed_Module — Yaf_Exception_LoadFailed_Module 类
    - Yaf_Exception_LoadFailed_Controller — Yaf_Exception_LoadFailed_Controller 类
    - Yaf_Exception_LoadFailed_Action — Yaf_Exception_LoadFailed_Action 类
    - Yaf_Exception_LoadFailed_View — Yaf_Exception_LoadFailed_View 类
  - Yaconf
    - 简介
    - 安装/配置
    - Yaconf — The Yaconf class
  - Taint
  - Data Structures
    - 简介
    - 安装/配置
    - 示例
    - Ds\Collection — The Collection interface
    - Ds\Hashable — The Hashable interface
    - Ds\Sequence — The Sequence interface
    - Ds\Vector — The Vector class
    - Ds\Deque — The Deque class
    - Ds\Map — The Map class
    - Ds\Pair — The Pair class
    - Ds\Set — The Set class
    - Ds\Stack — The Stack class
    - Ds\Queue — The Queue class
    - Ds\PriorityQueue — The PriorityQueue class
  - var_representation
- 其它服务
  - cURL — Client URL 库
    - 简介
    - 安装/配置
    - 预定义常量
    - 示例
    - cURL 函数
    - CurlHandle — CurlHandle 类
    - CurlMultiHandle — CurlMultiHandle 类
    - CurlShareHandle — CurlShareHandle 类
    - CurlSharePersistentHandle — CurlSharePersistentHandle 类
    - CURLFile — CURLFile 类
    - CURLStringFile — CURLStringFile 类
  - Event
    - 简介
    - 安装/配置
    - 示例
    - Event flags
    - About event persistence
    - Event callbacks
    - Constructing signal events
    - Event — The Event class
    - EventBase — The EventBase class
    - EventBuffer — The EventBuffer class
    - EventBufferEvent — The EventBufferEvent class
    - About buffer event callbacks
    - EventConfig — EventConfig 类
    - EventDnsBase — The EventDnsBase class
    - EventHttp — The EventHttp class
    - EventHttpConnection — The EventHttpConnection class
    - EventHttpRequest — The EventHttpRequest class
    - EventListener — The EventListener class
    - EventSslContext — The EventSslContext class
    - EventUtil — The EventUtil class
    - EventException — The EventException class
  - FTP
    - 简介
    - 安装/配置
    - 预定义常量
    - 示例
    - FTP 函数
    - FTP\Connection — The FTP\Connection class
  - Gearman
    - 简介
    - 安装/配置
    - 预定义常量
    - 示例
    - GearmanClient — The GearmanClient class
    - GearmanJob — The GearmanJob class
    - GearmanTask — The GearmanTask class
    - GearmanWorker — The GearmanWorker class
    - GearmanException — The GearmanException class
  - LDAP — Lightweight Directory Access Protocol
    - 简介
    - 安装/配置
    - 预定义常量
    - Using the PHP LDAP calls
    - LDAP controls
    - 示例
    - LDAP 函数
    - LDAP\Connection — The LDAP\Connection class
    - LDAP\Result — The LDAP\Result class
    - LDAP\ResultEntry — The LDAP\ResultEntry class
  - Memcache
    - 简介
    - 安装/配置
    - 预定义常量
    - 示例
    - Memcache — Memcache 类
    - Memcache 函数
  - Memcached
    - 简介
    - 安装/配置
    - 预定义常量
    - 超时时间
    - 回调
    - Sessions支持
    - Memcached — Memcached 类
    - MemcachedException — MemcachedException类
  - mqseries
  - 网络
  - RRD — RRDtool
    - 简介
    - 安装/配置
    - 示例
    - RRD 函数
    - RRDCreator — The RRDCreator class
    - RRDGraph — The RRDGraph class
    - RRDUpdater — The RRDUpdater class
  - ScoutAPM
  - SNMP
    - 简介
    - 安装/配置
    - 预定义常量
    - SNMP 函数
    - SNMP — The SNMP class
    - SNMPException — The SNMPException class
  - Socket
    - 简介
    - 安装/配置
    - 预定义常量
    - 示例
    - Socket Errors
    - Socket 函数
    - Socket — Socket 类
    - AddressInfo — AddressInfo 类
  - SSH2 — Secure Shell2
  - Stomp — Stomp Client
    - 简介
    - 安装/配置
    - 示例
    - Stomp 函数
    - Stomp — The Stomp class
    - StompFrame — The StompFrame class
    - StompException — The StompException class
  - SVM — 支持向量机
    - 简介
    - 安装/配置
    - 示例
    - SVM — The SVM class
    - SVMModel — The SVMModel class
  - SVN — Subversion
  - TCP — TCP Wrappers
  - Varnish
    - 简介
    - 安装/配置
    - 预定义常量
    - 示例
    - VarnishAdmin — The VarnishAdmin class
    - VarnishStat — The VarnishStat class
    - VarnishLog — The VarnishLog class
  - YAZ
  - 0MQ 消息 — ZMQ
    - 简介
    - 安装/配置
    - ZMQ — The ZMQ class
    - ZMQContext — The ZMQContext class
    - ZMQSocket — The ZMQSocket class
    - ZMQPoll — The ZMQPoll class
    - ZMQDevice — The ZMQDevice class
  - ZooKeeper
    - 简介
    - 安装/配置
    - ZooKeeper 函数
    - Zookeeper — The Zookeeper class
    - ZookeeperConfig — The ZookeeperConfig class
    - ZookeeperException — The ZookeeperException class
    - ZookeeperAuthenticationException — The ZookeeperAuthenticationException class
    - ZookeeperConnectionException — The ZookeeperConnectionException class
    - ZookeeperMarshallingException — The ZookeeperMarshallingException class
    - ZookeeperNoNodeException — The ZookeeperNoNodeException class
    - ZookeeperOperationTimeoutException — The ZookeeperOperationTimeoutException class
    - ZookeeperSessionException — The ZookeeperSessionException class
- 搜索引擎扩展
  - Solr — Apache Solr
    - 简介
    - 安装/配置
    - 预定义常量
    - Solr 函数
    - 示例
    - SolrUtils — The SolrUtils class
    - SolrInputDocument — The SolrInputDocument class
    - SolrDocument — The SolrDocument class
    - SolrDocumentField — The SolrDocumentField class
    - SolrObject — The SolrObject class
    - SolrClient — The SolrClient class
    - SolrResponse — The SolrResponse class
    - SolrQueryResponse — The SolrQueryResponse class
    - SolrUpdateResponse — The SolrUpdateResponse class
    - SolrPingResponse — The SolrPingResponse class
    - SolrGenericResponse — The SolrGenericResponse class
    - SolrParams — The SolrParams class
    - SolrModifiableParams — The SolrModifiableParams class
    - SolrQuery — The SolrQuery class
    - SolrDisMaxQuery — The SolrDisMaxQuery class
    - SolrCollapseFunction — The SolrCollapseFunction class
    - SolrException — The SolrException class
    - SolrClientException — The SolrClientException class
    - SolrServerException — The SolrServerException class
    - SolrIllegalArgumentException — The SolrIllegalArgumentException class
    - SolrIllegalOperationException — The SolrIllegalOperationException class
    - SolrMissingMandatoryParameterException — The SolrMissingMandatoryParameterException class
- 针对服务器的扩展
  - Apache
  - FastCGI 进程管理器
- Session 扩展
  - Sessions — Session 处理
    - 简介
    - 安装/配置
    - 预定义常量
    - 示例
    - Session 上传进度
    - 会话和安全
    - Session 函数
    - SessionHandler — The SessionHandler class
    - SessionHandlerInterface — The SessionHandlerInterface class
    - SessionIdInterface — The SessionIdInterface interface
    - SessionUpdateTimestampHandlerInterface — The SessionUpdateTimestampHandlerInterface interface
- 文本处理
  - CommonMark
    - 简介
    - 安装/配置
    - 预定义常量
    - CommonMark\Node\Document — Document concrete CommonMark\Node
    - CommonMark\Node\Heading — Heading concrete CommonMark\Node
    - CommonMark\Node\Paragraph — Paragraph concrete CommonMark\Node
    - CommonMark\Node\BlockQuote — BlockQuote concrete CommonMark\Node
    - CommonMark\Node\BulletList — BulletList concrete CommonMark\Node
    - CommonMark\Node\OrderedList — OrderedList concrete CommonMark\Node
    - CommonMark\Node\Item — Item concrete CommonMark\Node
    - CommonMark\Node\Text — Text concrete CommonMark\Node
    - CommonMark\Node\Text\Strong — Strong concrete CommonMark\Node
    - CommonMark\Node\Text\Emphasis — Emphasis concrete CommonMark\Node
    - CommonMark\Node\ThematicBreak — ThematicBreak concrete CommonMark\Node
    - CommonMark\Node\SoftBreak — SoftBreak concrete CommonMark\Node
    - CommonMark\Node\LineBreak — LineBreak concrete CommonMark\Node
    - CommonMark\Node\Code — Code concrete CommonMark\Node
    - CommonMark\Node\CodeBlock — CodeBlock concrete CommonMark\Node
    - CommonMark\Node\HTMLBlock — HTMLBlock concrete CommonMark\Node
    - CommonMark\Node\HTMLInline — HTMLInline concrete CommonMark\Node
    - CommonMark\Node\Image — Image concrete CommonMark\Node
    - CommonMark\Node\Link — Link concrete CommonMark\Node
    - CommonMark\Node\CustomBlock — CustomBlock concrete CommonMark\Node
    - CommonMark\Node\CustomInline — CustomInline concrete CommonMark\Node
    - CommonMark\Node — Abstract CommonMark\Node
    - CommonMark\Interfaces\IVisitor — The CommonMark\Interfaces\IVisitor interface
    - CommonMark\Interfaces\IVisitable — The CommonMark\Interfaces\IVisitable interface
    - CommonMark\Parser — The CommonMark\Parser class
    - CommonMark\CQL — The CommonMark\CQL class
    - CommonMark 函数
  - Parle — Parsing and lexing
    - 简介
    - 安装/配置
    - 预定义常量
    - Pattern matching — Parle pattern matching
    - 示例
    - Parle\Lexer — The Parle\Lexer class
    - Parle\RLexer — The Parle\RLexer class
    - Parle\Parser — The Parle\Parser class
    - Parle\RParser — The Parle\RParser class
    - Parle\Stack — The Parle\Stack class
    - Parle\Token — The Parle\Token class
    - Parle\ErrorInfo — The Parle\ErrorInfo class
    - Parle\LexerException — The Parle\LexerException class
    - Parle\ParserException — The Parle\ParserException class
  - PCRE — 正则表达式(兼容 Perl)
  - ssdeep — ssdeep Fuzzy Hashing
  - 字符串
- 变量与类型相关扩展
  - 数组
  - 类/对象 — 类/对象的信息
  - Ctype — 字符类型检测
  - 过滤器 — 数据过滤器
  - 函数处理
    - 简介
    - 函数处理函数
  - Quickhash
    - 简介
    - 安装/配置
    - 示例
    - QuickHashIntSet — The QuickHashIntSet class
    - QuickHashIntHash — The QuickHashIntHash class
    - QuickHashStringIntHash — The QuickHashStringIntHash class
    - QuickHashIntStringHash — The QuickHashIntStringHash class
  - 反射
    - 简介
    - 示例
    - 扩展
    - Reflection — Reflection 类
    - ReflectionClass — ReflectionClass 类
    - ReflectionClassConstant — The ReflectionClassConstant class
    - ReflectionConstant — The ReflectionConstant class
    - ReflectionEnum — ReflectionEnum 类
    - ReflectionEnumUnitCase — ReflectionEnumUnitCase 类
    - ReflectionEnumBackedCase — ReflectionEnumBackedCase 类
    - ReflectionZendExtension — ReflectionZendExtension 类
    - ReflectionExtension — ReflectionExtension 类
    - ReflectionFunction — ReflectionFunction 类
    - ReflectionFunctionAbstract — ReflectionFunctionAbstract 类
    - ReflectionMethod — ReflectionMethod 类
    - ReflectionNamedType — ReflectionNamedType 类
    - ReflectionObject — ReflectionObject 类
    - ReflectionParameter — ReflectionParameter 类
    - ReflectionProperty — ReflectionProperty 类
    - ReflectionType — ReflectionType 类
    - ReflectionUnionType — ReflectionUnionType 类
    - ReflectionGenerator — ReflectionGenerator 类
    - ReflectionFiber — ReflectionFiber 类
    - ReflectionIntersectionType — ReflectionIntersectionType 类
    - ReflectionReference — ReflectionReference 类
    - ReflectionAttribute — ReflectionAttribute 类
    - Reflector — Reflector 接口
    - ReflectionException — ReflectionException 类
    - PropertyHookType — PropertyHookType 枚举
  - 变量处理
- Web 服务
  - OAuth
    - 简介
    - 安装/配置
    - 预定义常量
    - 示例
    - OAuth 函数
    - OAuth — OAuth 类
    - OAuthProvider — OAuthProvider 类
    - OAuthException — OAuthException 类
  - SOAP
    - 简介
    - 安装/配置
    - 预定义常量
    - SOAP 函数
    - SoapClient — The SoapClient class
    - SoapServer — The SoapServer class
    - SoapFault — The SoapFault class
    - SoapHeader — The SoapHeader class
    - SoapParam — The SoapParam class
    - SoapVar — The SoapVar class
  - Yar — Yet Another RPC Framework
    - 简介
    - 安装/配置
    - 预定义常量
    - 示例
    - Yar_Server — The Yar_Server class
    - Yar_Client — Yar_Client 类
    - Yar_Concurrent_Client — Yar_Concurrent_Client 类
    - Yar_Server_Exception — Yar_Server_Exception 类
    - Yar_Client_Exception — Yar_Client_Exception 类
  - XML-RPC
- Windows 专用扩展
  - COM — COM 和 .Net（Windows）
    - 简介
    - 安装/配置
    - 预定义常量
    - Errors and error handling
    - 示例
    - com — The com class
    - dotnet — The dotnet class
    - variant — variant class
    - COMPersistHelper — The COMPersistHelper class
    - com_exception — The com_exception class
    - com_safearray_proxy — com_safearray_proxy 类
    - COM 函数
  - win32service
    - 简介
    - 安装/配置
    - 预定义常量
    - Win32ServiceException — The Win32ServiceException class
    - Win32Service\RightInfo — The Win32Service\RightInfo class
    - 示例
    - win32service 函数
- XML 操作
  - DOM — Document Object Model
    - 简介
    - 安装/配置
    - 预定义常量
    - 示例
    - DOMAttr — The DOMAttr class
    - DOMCdataSection — The DOMCdataSection class
    - DOMCharacterData — The DOMCharacterData class
    - DOMChildNode — The DOMChildNode interface
    - DOMComment — The DOMComment class
    - DOMDocument — The DOMDocument class
    - DOMDocumentFragment — The DOMDocumentFragment class
    - DOMDocumentType — The DOMDocumentType class
    - DOMElement — The DOMElement class
    - DOMEntity — The DOMEntity class
    - DOMEntityReference — The DOMEntityReference class
    - DOMException — The DOMException / Dom\Exception class
    - DOMImplementation — The DOMImplementation class
    - DOMNamedNodeMap — The DOMNamedNodeMap class
    - DOMNameSpaceNode — The DOMNameSpaceNode class
    - DOMNode — The DOMNode class
    - DOMNodeList — The DOMNodeList class
    - DOMNotation — The DOMNotation class
    - DOMParentNode — The DOMParentNode interface
    - DOMProcessingInstruction — The DOMProcessingInstruction class
    - DOMText — The DOMText class
    - DOMXPath — The DOMXPath class
    - Dom\AdjacentPosition — The Dom\AdjacentPosition Enum
    - Dom\Attr — The Dom\Attr class
    - Dom\CDATASection — The Dom\CDATASection class
    - Dom\CharacterData — The Dom\CharacterData class
    - Dom\ChildNode — The Dom\ChildNode interface
    - Dom\Comment — The Dom\Comment class
    - Dom\Document — The Dom\Document class
    - Dom\DocumentFragment — The Dom\DocumentFragment class
    - Dom\DocumentType — The Dom\DocumentType class
    - Dom\DtdNamedNodeMap — The Dom\DtdNamedNodeMap class
    - Dom\Element — The Dom\Element class
    - Dom\Entity — The Dom\Entity class
    - Dom\EntityReference — The Dom\EntityReference class
    - Dom\HTMLCollection — The Dom\HTMLCollection class
    - Dom\HTMLDocument — The Dom\HTMLDocument class
    - Dom\HTMLElement — The Dom\HTMLElement class
    - Dom\Implementation — The Dom\Implementation class
    - Dom\NamedNodeMap — The Dom\NamedNodeMap class
    - Dom\NamespaceInfo — The Dom\NamespaceInfo class
    - Dom\Node — The Dom\Node class
    - Dom\NodeList — The Dom\NodeList class
    - Dom\Notation — The Dom\Notation class
    - Dom\ParentNode — The Dom\ParentNode interface
    - Dom\ProcessingInstruction — The Dom\ProcessingInstruction class
    - Dom\Text — The Dom\Text class
    - Dom\TokenList — The Dom\TokenList class
    - Dom\XMLDocument — The Dom\XMLDocument class
    - Dom\XPath — The Dom\XPath class
    - DOM 函数
  - libxml
    - 简介
    - 安装/配置
    - 预定义常量
    - LibXMLError — The LibXMLError class
    - libxml 函数
  - SimpleXML
    - 简介
    - 安装/配置
    - 示例
    - SimpleXMLElement — The SimpleXMLElement class
    - SimpleXMLIterator — The SimpleXMLIterator class
    - SimpleXML 函数
  - WDDX
  - XMLDiff — XML diff and merge
    - 简介
    - 安装/配置
    - XMLDiff\Base — The XMLDiff\Base class
    - XMLDiff\DOM — The XMLDiff\DOM class
    - XMLDiff\Memory — The XMLDiff\Memory class
    - XMLDiff\File — The XMLDiff\File class
  - XML 解析器
    - 简介
    - 安装/配置
    - 预定义常量
    - 事件处理程序
    - 大写转换
    - 错误代码
    - 字符编码
    - 示例
    - XML 解析器函数
    - XMLParser — XMLParser 类
  - XMLReader
    - 简介
    - 安装/配置
    - XMLReader — The XMLReader class
  - XMLWriter
    - 简介
    - 安装/配置
    - 示例
    - XMLWriter — The XMLWriter class
  - XSL
    - 简介
    - 安装/配置
    - 预定义常量
    - 示例
    - XSLTProcessor — The XSLTProcessor class
- 图形用户界面(GUI) 扩展
  - UI
    - 简介
    - 安装/配置
    - UI\Point — Represents a position (x,y)
    - UI\Size — Represents dimensions (width, height)
    - UI\Window — Window
    - UI\Control — Control
    - UI\Menu — Menu
    - UI\MenuItem — Menu Item
    - UI\Area — Area
    - UI\Executor — Execution Scheduler
    - UI\Controls\Tab — Tab Control
    - UI\Controls\Check — Check Control
    - UI\Controls\Button — Button Control
    - UI\Controls\ColorButton — ColorButton Control
    - UI\Controls\Label — Label Control
    - UI\Controls\Entry — Entry Control
    - UI\Controls\MultilineEntry — MultilineEntry Control
    - UI\Controls\Spin — Spin Control
    - UI\Controls\Slider — Slider Control
    - UI\Controls\Progress — Progress Control
    - UI\Controls\Separator — Control Separator
    - UI\Controls\Combo — Combo Control
    - UI\Controls\EditableCombo — EdiableCombo Control
    - UI\Controls\Radio — Radio Control
    - UI\Controls\Picker — Picker Control
    - UI\Controls\Form — Control Form (Arrangement)
    - UI\Controls\Grid — Control Grid (Arrangement)
    - UI\Controls\Group — Control Group (Arrangement)
    - UI\Controls\Box — Control Box (Arrangement)
    - UI\Draw\Pen — Draw Pen
    - UI\Draw\Path — Draw Path
    - UI\Draw\Matrix — Draw Matrix
    - UI\Draw\Color — Color Representation
    - UI\Draw\Stroke — Draw Stroke
    - UI\Draw\Brush — Brushes
    - UI\Draw\Brush\Gradient — Gradient Brushes
    - UI\Draw\Brush\LinearGradient — Linear Gradient
    - UI\Draw\Brush\RadialGradient — Radial Gradient
    - UI\Draw\Text\Layout — Represents Text Layout
    - UI\Draw\Text\Font — Represents a Font
    - UI\Draw\Text\Font\Descriptor — Font Descriptor
    - UI 函数
    - UI\Draw\Text\Font\Weight — Font Weight Settings
    - UI\Draw\Text\Font\Italic — Italic Font Settings
    - UI\Draw\Text\Font\Stretch — Font Stretch Settings
    - UI\Draw\Line\Cap — Line Cap Settings
    - UI\Draw\Line\Join — Line Join Settings
    - UI\Key — Key Identifiers
    - UI\Exception\InvalidArgumentException — InvalidArgumentException
    - UI\Exception\RuntimeException — RuntimeException
FAQ — 常见问题
- 一般信息
- 邮件列表
- 获取 PHP
- 数据库问题
- 安装 — 安装常见问题
- 编译问题
- 使用 PHP
- 密码散列 — 安全可靠的密码散列
- PHP 和 HTML
- PHP 和 COM
- 其他问题
附录