Those functions provide means to execute commands on the system itself, and means to secure such commands.
Nu sunt necesare biblioteci externe pentru a asambla această extensie.
Nu este necesar de a instala ceva suplimentar pentru a utiliza aceste funcţii; ele fac parte din nucleul PHP.
Această extensie nu are directive de configurare definite în php.ini.
This extension defines a process resource, returned by proc_open().
Această extensie nu are constante definite.
Open files with lock (especially open sessions) should be closed before executing a program in the background.
These functions are also closely related to the backtick operator. Also, while in modul securizat you must consider the safe_mode_exec_dir directive.