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PHP Manual


Program execution Functions

Notes

Warning

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

See Also

These functions are also closely related to the backtick operator. Also, while in safe mode 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



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