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Program Execution Functions

介紹

Those functions provide means to execute commands on the system itself, and means to secure such commands.

需求

建立這個延伸不需要任何外部程式庫。

安裝

這些函數是PHP核心的一部分,不需要安裝就可使用。

執行時期組態

php.ini中沒有定義此延伸的組態指令。

資源類型

This extension defines a process resource, returned by proc_open().

預先定義常數

這個延伸沒有定義任何常數。

Notes

Warning

Open files with lock (especially open sessions) should be closed before executing a program in the background.

參考

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.

Table of Contents

  • escapeshellarg — Escape a string to be used as a shell argument
  • escapeshellcmd — Escape shell metacharacters
  • exec — Execute an external program
  • passthru — Execute an external program and display raw output
  • proc_close — Close a process opened by proc_open and return the exit code of that process.
  • proc_get_status — Get information about a process opened by proc_open
  • proc_nice — Change the priority of the current process
  • proc_open — Execute a command and open file pointers for input/output
  • proc_terminate — Kills a process opened by proc_open
  • shell_exec — Execute command via shell and return the complete output as a string
  • system — Execute an external program and display the output