PHP multi-process parallel execution script code

#!/usr/bin/env php
/**
* php multi-process
* by bbs.it-home.org
*/
$cmds=array(
 array('/app/test.php' ,'charge/pstat.php','mobile',1),
 array('/app/test.php','charge/pstat.php','mobile',2),
 array('/app/ test.php','charge/pstat.php','click',1),
 array('/app/test.php','charge/pstat.php','click',2),
 array( '/app/test.php','charge/pstat.php',1),
 array('/app/test.php','charge/pstat.php',2)
);
foreach($cmds as $cmd){
 $pid=pcntl_fork();
 if($pid==-1){ //Process creation failed
 die('fork child process failure!');
 }
 else if($pid){ //Parent process processing logic
 pcntl_wait($status,WNOHANG);
 }
 else{ //Child process processing logic
 pcntl_exec('/usr/local/bin/php', $cmd);
 }
}
?>