Check if line in txt exists

[raiyen90]

Ok so i have a hit counter on my site, but the problem is people going and reloading the page over and over, so i need to make it so it grabs their ip and sends that to a seperate text file. Thats easy but i cannot find anything on searching lines of a text file for a certain string. sooooo if u could help me?? maybe

 

thanx

[teng84]

elaborate more of it plss

[raiyen90]

ok

<?php 
$filename = "hits.txt"; 
$handle = fopen($filename, "r");
$views = fread($handle, filesize($filename));
fclose($handle); 
$handle = fopen($filename, "w"); 
$views++; 
fwrite($handle, $views); 
fclose($handle); 
echo $views; 
php?>

 

there is my code i have currently, i want it to check if the ip address exists in any lines of a txt file, if not grab the ip and save it to a text file (on a new line of course). But if the ip does exist to just skip the whole code of my counter where it writes the number to my hits.txt

 

hope that sounds better?

[teng84]

http://www.php.net/manual/en/function.fopen.php