An error har occured.

', $e->getMessage(), '

'; } $sth = $dbh->prepare('SELECT * FROM User WHERE username = :username'); try { $sth->execute($_GET); } catch (Exception $e) { echo "

An error has occured.

", $e->getMessage(), '

'; } $sth->setFetchMode(PDO::FETCH_ASSOC); $result = $sth->fetchAll(); if (count($result) > 0) { echo true; } else { echo false; }