Description:
------------
When using pcntl_fork(), if a child script finishes execution (or exit/dies), the process goes defunct. I've found that with my particular needs I can reverse the normal programming method used with a server-like application, and the defunct problem goes away.

For example, if I had a script that waited for a socket connection, then I would spawn child processes to handle any connections. This causes defunct processes when the children exit. Instead, I have to spawn a child that continues listening, and the parent process handles the current connection. When the parent finishes execution, it exits cleanly, and the child becomes the new "parent".

Reproduce code:
---------------
for($a=0;$a<=10;$a++)
{
  $pid=pcntl_fork();
  if($pid==-1){die('fork error');}
  elseif($pid==0) //child process
  {
    echo "hello world\n";
    exit;
  }
  else //parent process
  {
    /* Continue Looping */
  }
}
passthru('ps -a | grep php');


Expected result:
----------------
Expected output of passthru() would be to have 1 properly functioning process listed.

Actual result:
--------------
Defunct processes are created. These processes will persist until the parent process dies.