APC — Alternative PHP Cache (可選 PHP 緩存) >[warning]不再維護，此擴展的代替者是：[OPcache](https://www.php.net/manual/zh/book.opcache.php)、[APCu](https://www.php.net/manual/zh/book.apcu.php)、[Windows Cache for PHP](https://www.php.net/manual/zh/book.wincache.php)和[Session Upload Progress API](https://www.php.net/manual/zh/session.upload-progress.php)。 APCu — APC用戶緩存 APD — 高級的PHP調試器 bcompiler — PHP 字節碼編譯器 BLENC — Blenc - BLowfish ENCoder for PHP source scripts Componere 錯誤處理 — 錯誤處理和日志記錄 FFI — Foreign Function Interface htscanner — htaccess-like support for all SAPIs inclued — Inclusion hierarchy viewer Memtrack OPcache 輸出控制 — 輸出緩沖控制 PHP 選項/信息 — PHP 選項和信息 phpdbg — Interactive PHP Debugger runkit runkit7 scream — Break the silence operator uopz — User Operations for Zend Weakref — Weak References WinCache — Windows Cache for PHP Xhprof — 層次式性能分析器