search utility still doesn't work

search utility still doesn't work
Parse error: parse error, unexpected T_VARIABLE on line 13

<?php

// Get the search variable from URL

$var = @$_GET['q'] ;
$trimmed = trim($var) //trim whitespace from the stored variable





$lines20 = file ('gb.txt');
$i=0;
foreach($lines20 as $rec20) {
$pos = strpos($rec20, $trimmed);
if ($pos !== false) {
$a20[$i] = $rec20;
$i = $i + 1;
}



if ($i=0) {
echo "0 results";

}
else {

 

Change $trimmed = trim($var) to $trimmed = trim($var);