# 函數 * [assert\_options](https://www.php.net/manual/zh/function.assert-options.php)— 設置/獲取斷言的各種標志 * [assert](https://www.php.net/manual/zh/function.assert.php)— 檢查一個斷言是否為 FALSE * [cli\_get\_process\_title](https://www.php.net/manual/zh/function.cli-get-process-title.php)— 返回當前進程標題 * [cli\_set\_process\_title](https://www.php.net/manual/zh/function.cli-set-process-title.php)— 設置進程標題 * [dl](https://www.php.net/manual/zh/function.dl.php)— 運行時載入一個 PHP 擴展 * [extension\_loaded](https://www.php.net/manual/zh/function.extension-loaded.php)— 檢查一個擴展是否已經加載 * [gc\_collect\_cycles](https://www.php.net/manual/zh/function.gc-collect-cycles.php)— 強制收集所有現存的垃圾循環周期 * [gc\_disable](https://www.php.net/manual/zh/function.gc-disable.php)— 停用循環引用收集器 * [gc\_enable](https://www.php.net/manual/zh/function.gc-enable.php)— 激活循環引用收集器 * [gc\_enabled](https://www.php.net/manual/zh/function.gc-enabled.php)— 返回循環引用計數器的狀態 * [gc\_mem\_caches](https://www.php.net/manual/zh/function.gc-mem-caches.php)—回收Zend引擎內存管理器使用的內存 * [gc\_status](https://www.php.net/manual/zh/function.gc-status.php)— 獲取有關垃圾收集器的信息 * [get\_cfg\_var](https://www.php.net/manual/zh/function.get-cfg-var.php)— 獲取 PHP 配置選項的值 * [get\_current\_user](https://www.php.net/manual/zh/function.get-current-user.php)— 獲取當前 PHP 腳本所有者名稱 * [get\_defined\_constants](https://www.php.net/manual/zh/function.get-defined-constants.php)— 返回所有常量的關聯數組，鍵是常量名，值是常量值 * [get\_extension\_funcs](https://www.php.net/manual/zh/function.get-extension-funcs.php)— 返回模塊函數名稱的數組 * [get\_include\_path](https://www.php.net/manual/zh/function.get-include-path.php)— 獲取當前的 include\_path 配置選項 * [get\_included\_files](https://www.php.net/manual/zh/function.get-included-files.php)— 返回被 include 和 require 文件名的 array * [get\_loaded\_extensions](https://www.php.net/manual/zh/function.get-loaded-extensions.php)— 返回所有編譯并加載模塊名的 array * [get\_magic\_quotes\_gpc](https://www.php.net/manual/zh/function.get-magic-quotes-gpc.php)— 獲取當前 magic\_quotes\_gpc 的配置選項設置 * [get\_magic\_quotes\_runtime](https://www.php.net/manual/zh/function.get-magic-quotes-runtime.php)— 獲取當前 magic\_quotes\_runtime 配置選項的激活狀態 * [get\_required\_files](https://www.php.net/manual/zh/function.get-required-files.php)— 別名 get\_included\_files * [get\_resources](https://www.php.net/manual/zh/function.get-resources.php)— 返回活動資源 * [getenv](https://www.php.net/manual/zh/function.getenv.php)— 獲取一個環境變量的值 * [getlastmod](https://www.php.net/manual/zh/function.getlastmod.php)— 獲取頁面最后修改的時間 * [getmygid](https://www.php.net/manual/zh/function.getmygid.php)— 獲取當前 PHP 腳本擁有者的 GID * [getmyinode](https://www.php.net/manual/zh/function.getmyinode.php)— 獲取當前腳本的索引節點（inode） * [getmypid](https://www.php.net/manual/zh/function.getmypid.php)— 獲取 PHP 進程的 ID * [getmyuid](https://www.php.net/manual/zh/function.getmyuid.php)— 獲取 PHP 腳本所有者的 UID * [getopt](https://www.php.net/manual/zh/function.getopt.php)— 從命令行參數列表中獲取選項 * [getrusage](https://www.php.net/manual/zh/function.getrusage.php)— 獲取當前資源使用狀況 * [ini\_alter](https://www.php.net/manual/zh/function.ini-alter.php)— 別名 ini\_set * [ini\_get\_all](https://www.php.net/manual/zh/function.ini-get-all.php)— 獲取所有配置選項 * [ini\_get](https://www.php.net/manual/zh/function.ini-get.php)— 獲取一個配置選項的值 * [ini\_restore](https://www.php.net/manual/zh/function.ini-restore.php)— 恢復配置選項的值 * [ini\_set](https://www.php.net/manual/zh/function.ini-set.php)— 為一個配置選項設置值 * [magic\_quotes\_runtime](https://www.php.net/manual/zh/function.magic-quotes-runtime.php)— 別名 set\_magic\_quotes\_runtime * [main](https://www.php.net/manual/zh/function.main.php)— 虛擬的main * [memory\_get\_peak\_usage](https://www.php.net/manual/zh/function.memory-get-peak-usage.php)— 返回分配給 PHP 內存的峰值 * [memory\_get\_usage](https://www.php.net/manual/zh/function.memory-get-usage.php)— 返回分配給 PHP 的內存量 * [php\_ini\_loaded\_file](https://www.php.net/manual/zh/function.php-ini-loaded-file.php)— 取得已加載的 php.ini 文件的路徑 * [php\_ini\_scanned\_files](https://www.php.net/manual/zh/function.php-ini-scanned-files.php)— 返回從額外 ini 目錄里解析的 .ini 文件列表 * [php\_logo\_guid](https://www.php.net/manual/zh/function.php-logo-guid.php)— 獲取 logo 的 guid * [php\_sapi\_name](https://www.php.net/manual/zh/function.php-sapi-name.php)— 返回 web 服務器和 PHP 之間的接口類型 * [php\_uname](https://www.php.net/manual/zh/function.php-uname.php)— 返回運行 PHP 的系統的有關信息 * [phpcredits](https://www.php.net/manual/zh/function.phpcredits.php)— 打印 PHP 貢獻者名單 * [phpinfo](https://www.php.net/manual/zh/function.phpinfo.php)— 輸出關于 PHP 配置的信息 * [phpversion](https://www.php.net/manual/zh/function.phpversion.php)— 獲取當前的PHP版本 * [putenv](https://www.php.net/manual/zh/function.putenv.php)— 設置環境變量的值 * [restore\_include\_path](https://www.php.net/manual/zh/function.restore-include-path.php)— 還原 include\_path 配置選項的值 * [set\_include\_path](https://www.php.net/manual/zh/function.set-include-path.php)— 設置 include\_path 配置選項 * [set\_magic\_quotes\_runtime](https://www.php.net/manual/zh/function.set-magic-quotes-runtime.php)— 設置當前 magic\_quotes\_runtime 配置選項的激活狀態 * [set\_time\_limit](https://www.php.net/manual/zh/function.set-time-limit.php)— 設置腳本最大執行時間 * [sys\_get\_temp\_dir](https://www.php.net/manual/zh/function.sys-get-temp-dir.php)— 返回用于臨時文件的目錄 * [version\_compare](https://www.php.net/manual/zh/function.version-compare.php)— 對比兩個「PHP 規范化」的版本數字字符串 * [zend\_logo\_guid](https://www.php.net/manual/zh/function.zend-logo-guid.php)— 獲取 Zend guid * [zend\_thread\_id](https://www.php.net/manual/zh/function.zend-thread-id.php)— 返回當前線程的唯一識別符 * [zend\_version](https://www.php.net/manual/zh/function.zend-version.php)— 獲取當前 Zend 引擎的版本