Close a process opened by proc_open and return the exit code of that process. passthru proc_get_status Program execution Functions PHP Manual proc_close (PHP 4 >= 4.3.0, PHP 5)proc_close — Close a process opened by proc_open() and return the exit code of that process. Description int proc_close ( resource $process ) proc_close() is similar to pclose() except that it only works on processes opened by proc_open(). proc_close() waits for the process to terminate, and returns its exit code. If you have open pipes to that process, you should fclose() them prior to calling this function in order to avoid a deadlock - the child process may not be able to exit while the pipes are open. Parameters process The proc_open() resource that will be closed. Return Values Returns the termination status of the process that was run. passthru proc_get_status Program execution Functions PHP Manual