note 32945 added to function.shell-exec

I have a problem, i need to execute the ping command from web, i've followed all examples and they all works for with the backstick operator, but when i going to execute a ping, it don't show any output. When i execute for example: $ping = ls -l; echo '<pre>$output</pre>'; this work fine, so my question is how do i do to output the ping command from web? I have linux redhat 8.0. ---- Manual Page -- http://www.php.net/manual/en/function.shell-exec.php Edit Note -- http://master.php.net/manage/user-notes.php?action=edit+32945 Delete Note -- http://master.php.net/manage/user-notes.php?action=delete+32945&report=yes Reject Note -- http://master.php.net/manage/user-notes.php?action=reject+32945&report=yes