note 20029 added to function.popen

I retract my earlier statement about race conditions. If each web process follows the same order, writing then reading, and are not forked (other than the popen) then there will not be race conditions since they will be queued in the order they arrived. There is still a blocking problem however. hholzgra@php.net is apparently working on a bi-directional pipe function for a future release. The bug number for that one is #15171. YEAH! -- http://www.php.net/manual/en/function.popen.php http://master.php.net/manage/user-notes.php?action=edit+20029 http://master.php.net/manage/user-notes.php?action=delete+20029 http://master.php.net/manage/user-notes.php?action=reject+20029