ensure that PDO fetch method result “false” is a error or empty result

Question

How can I recognize a fetch error or empty result from a execute error with php PDO mysql driver?

  $sql = \' SELECT * \';
  $sql .= \' FROM test \';
  $sql          


        

Answer 1

If there's an error then PDO will throw an exception which you can catch. Wrap your code with a try catch and that should catch any exceptions.

try {
    $rs = $db->prepare('SELECT * FROM foo');
    $rs->execute();
    $foo = $rs->fetchAll();
} catch (Exception $e) {
    echo 'Error: '.$e->getMessage();
}