gistfile1.php

#!/usr/bin/php
<?php
$fdspec = array(
  0 => array( "pipe", "r" ),
  1 => array( "pipe", "w" ),
  2 => array( "pipe", "w" ),
);
$proc = proc_open("ls",$fdspec,$pipes,NULL,array());
if (is_resource($proc)) {
 fclose($pipes[0]);
 while(!feof($pipes[1]))  {
   static $line;
   $prev_line = $line;
   $line = stream_get_line($pipes[1],4096,"\n");
}
 print $prev_line;
}