PHP killing processes with a name

gistfile1.php

/*
  This will kill all cpu processes launched by a certain php file. Can be used to kill other things too.
*/

$killTheseProcesses = "feednew.php";
$allProcesses = shell_exec("pgrep -lf php");
$allProcessesArray = explode("\n", $allProcesses);
array_pop($allProcessesArray);
foreach ($allProcessesArray as $process)
{
  $processArray = explode(' ', $process);
  if ($processArray[1] == 'php' && $processArray[3] > 0 && strpos($processArray[2],$killTheseProcesses) !== false) {
    print $process."\n";
    shell_exec("kill -KILL ".$processArray[0]);
  }
}