What's wrong in this code ?

hello friends,

I am trying to make a simple unique hit counter with ip address and .txt file

but somehow this code is not working ..me using wamp server to test the code
this is my count.php

<?php

function hit_count(){
    $ip_address =$_SERVER["REMOTE_ADDR"];

$ip_file = file("ip.txt");
foreach($ip_file as $ip){
     $ip_single = trim($ip);
     if($ip_address == $ip_single){
       
         $found = true;
         break;
     }else{
         $found = false;
     }
   
}...

PHP:

What's wrong in this code ?

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