this script is supposed to let me search by multiple keywords, but only lets me search by one at a time. The error i get when i try to type in several keywords is:
Warning: mysqli_num_rows() expects parameter 1 to be mysqli_result, boolean given in C:wampwwwsearch.php on line 32
<h1>search engine</h1>
<form action="search.php" method="get">
<input type="text" name="k" size='50' />
<input type="submit" name="submit" value='Search' />
</form>
<hr />
<?php
include "connect.php";
$k = $_GET[