Those functions provide means to execute commands on the system itself, and means to secure such commands.
要編譯本擴充功能無需外部函式庫。
本擴充功能作為 PHP 核心的一部分,無需安裝即可使用。
本擴充功能在 php.ini 中未定義任何設定選項。
This extension defines a process resource, returned by proc_open().
本擴充功能未定義任何常數。
Open files with lock (especially open sessions) should be closed before executing a program in the background.
These functions are also closely related to the backtick operator. Also, while in 安全模式 you must consider the safe_mode_exec_dir directive.