Using PHP 5.5, I've noticed that I cannot close PDO connections after I've already executed statements using a connection.
$dbh = new PDO('mysql:host=localhost;dbname=test', $user, $pass); $dbh = null;
Closes the connection just fine. But I can't get the following connection to close here:
$dbh = new PDO('mysql:host=localhost;dbname=test', $user, $pass); $stmt = $dbh->prepare("select * from someTable where 1<>0"); $stmt->execute(); $dbh = null;
You can see a related note about this on the PHP docs here http://php.net/manual/en/pdo.connections.php#114822. In short, you need to set the statement and the connection to null.
$stmt = null; $dbh = null;