note 86221 added to function.exec

how know if the IP exist:

<?php

	$str = exec("ping -n 1 -w 1 64.233.161.104", $input, $result);
	if ($result == 0) // if its zero successfull
	{
		echo "connect";
	}
	else   // $result != 0 
	{
		echo "not connect";
	}
	echo "<pre>";
	print_r($input);
	echo "</pre>";

?>

I hope this help
----
Server IP: 200.6.154.201
Probable Submitter: 190.73.205.217
----
Manual Page -- http://www.php.net/manual/en/function.exec.php
Edit        -- https://master.php.net/note/edit/86221
Del: integrated  -- https://master.php.net/note/delete/86221/integrated
Del: useless     -- https://master.php.net/note/delete/86221/useless
Del: bad code    -- https://master.php.net/note/delete/86221/bad+code
Del: spam        -- https://master.php.net/note/delete/86221/spam
Del: non-english -- https://master.php.net/note/delete/86221/non-english
Del: in docs     -- https://master.php.net/note/delete/86221/in+docs
Del: other reasons-- https://master.php.net/note/delete/86221
Reject      -- https://master.php.net/note/reject/86221
Search      -- https://master.php.net/manage/user-notes.php