PDO catch PDOException fails on construction

Question

I\'ve seen variations of this code all over the place, including many S.O. posts:

class db extends PDO {

    public function __construct( $dbconf ) {
        $o         


        

Answer 1

The reason being is PDO::__construct only creates the object upon successful connection. So when you call the parent constructor and it fails your object doesn't exist anymore. You should use self::myerror() to access the error function statically in this case.

Answer 2

There shouldn't be myerror() function at all. A database layer scarcely need it's own error handler. And constructor have to be

public function __construct( $dbconf ) {
    $dsn  = "mysql:";
    $dsn .= "host=".   $dbconf['dbhost'].";";
    $dsn .= "dbname=". $dbconf['dbname'].";";
    $dsn .= "port=".   $dbconf['dbport'].";";
    $dsn .= "charset=".$dbconf['dbcharset'];
    $options = array(
        PDO::MYSQL_ATTR_INIT_COMMAND => 'SET NAMES '.$dbconf['charset'],
        PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
        PDO::ATTR_ERRMODE            => PDO::ERRMODE_EXCEPTION,
        PDO::ATTR_PERSISTENT         => (bool)$dbconf['persist'],
    );
    parent::__construct($dsn, $dbconf['dbuser'], $dbconf['dbpass'],$options);
}