PHP实时搜索错误

分析错误：语法错误，第5行C:\xampp\htdocs\Search\Search.php中出现意外的“if”（T\u if）

无法解释我的if有什么问题

<?php
mysql_connect("localhost","root","") or die("could not connect");
mysql_select_db("search") or die("could not find db")

if(isset($_POST['search'])){
    $searchq = $_POST['search'];
    $searchq = preg_replace("#[^0-9a-z]#i","",$searchq);

    $query = mysql_query("SELECT * FROM students WHERE firstname LIKE '%$searchq%' OR lastname LIKE '%$searchq%'") or die("could not search!");
    $count = mysql_num_rows($query);
}
    if($count == 0){
        $result = 'There was no search results!';
        else{
            while($row = mysql_fetch_array($query)){
                $fname = $row['firstname'];
                $lname = $row['lastname'];
                $id = $roq['ic'];

                $output .= '<div>'.$fname.' '.$lname.'</div>';
        }
    }
}
?>

请在下一行添加分号（；）

mysql_select_db("search") or die("could not find db");