(PHP 4 >= 4.3.0, PHP 5, PHP 7) Close a process opened by

(PHP 5, PHP 7) Get information about a process opened by

(PHP 4, PHP 5, PHP 7) Execute an external program and display raw output

(PHP 4, PHP 5, PHP 7) Execute an external program and display the output

(PHP 4 >= 4.0.3, PHP 5, PHP 7) Escape a string to be used as a shell argument

(PHP 4, PHP 5, PHP 7) Execute command via shell and return the complete output as a string

(PHP 4, PHP 5, PHP 7) Execute an external program

(PHP 4, PHP 5, PHP 7) Escape shell metacharacters

(PHP 5, PHP 7) Kills a process opened by proc_open

(PHP 5, PHP 7) Change the priority of the current process