Script executing Telnet Shell Command...

I am trying to execute a Script running a telnet command testing through a range of IP connections... Here goes: <? $str = "123.456.789."; $count = 0; while ($count < 999){ $runTheScriptCommand... } ?> What I want to stick into the while loop is if connection was successful, break... Is there a way I can check whether telnet connection was successful on each step through the loop or do I have to restructure my program and try connecting to a port via fsockopen... By the way does anyone know what port number telnet connects to... Spike...