System program execution

Introduction

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

Note:
All execution functions call the commands through cmd.exe under Windows. Therefore the user calling these functions needs appropriate privilege to run this command. The only exception is proc_open() with bypass_shell option.

Installing/Configuring
- Resource Types
Program execution Functions
- 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 pipes to a process opened by proc_open, wait for it to terminate, and return its exit code
- 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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