rendered paste body<?phpif (getenv('REQUEST_METHOD') == 'POST') { $url = $_POST[url]; $txt = $_POST[txt];} else { $url = $_GET[url]; $txt = $_GET[txt];}echo "<form action=$_SERVER[PHP_SELF] method=POST>URL:<input type=text name=url value=$url><br>Text:<input type=text name=txt value=$txt><br><input type=submit></form>";?><?phpif ($url) {$remote = fopen($url, 'r');$html = fread($remote, 1048576); // line 20fclose($remote);if (preg_match("/\b".$txt."\b/i", $html)) { echo "A match was found.";} else { echo "A match was not found.";}}?>