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

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

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

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

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