--TEST-- PDO Common: extending PDO --SKIPIF-- --FILE-- test2 = 2; $this->test2 = 22; echo __METHOD__ . "()\n"; } function __destruct() { echo __METHOD__ . "()\n"; } } class PDODatabaseX extends PDO { public $test1 = 1; function __destruct() { echo __METHOD__ . "()\n"; } function test() { $this->test2 = 2; var_dump($this->test1); var_dump($this->test2); $this->test2 = 22; } function query($sql, ...$rest) { echo __METHOD__ . "()\n"; $stmt = parent::prepare($sql, array(PDO::ATTR_STATEMENT_CLASS=>array('PDOStatementx'))); $stmt->execute(); return $stmt; } } $db = PDOTest::factory('PDODatabaseX'); $db->test(); var_dump($db); $db->query('CREATE TABLE test(id INT NOT NULL PRIMARY KEY, val VARCHAR(10))'); $db->query('INSERT INTO test VALUES(0, \'A\')'); $db->query('INSERT INTO test VALUES(1, \'B\')'); $stmt = $db->query('SELECT val, id FROM test'); var_dump($stmt); var_dump($stmt->fetchAll(PDO::FETCH_COLUMN|PDO::FETCH_UNIQUE)); $stmt = NULL; $db = NULL; ?> --EXPECTF-- int(1) int(2) object(PDODatabaseX)#%d (2) { ["test1"]=> int(1) ["test2"]=> int(22) } PDODatabaseX::query() PDOStatementX::__construct() PDOStatementX::__destruct() PDODatabaseX::query() PDOStatementX::__construct() PDOStatementX::__destruct() PDODatabaseX::query() PDOStatementX::__construct() PDOStatementX::__destruct() PDODatabaseX::query() PDOStatementX::__construct() object(PDOStatementX)#%d (3) { ["queryString"]=> string(24) "SELECT val, id FROM test" ["test1"]=> int(1) ["test2"]=> int(22) } array(2) { ["A"]=> string(1) "0" ["B"]=> string(1) "1" } PDOStatementX::__destruct() PDODatabaseX::__destruct()