PDO 5.4和Apache 2.4.3上的PDO很慢[重复]

Question

Possible Duplicate:
mysql_connect (localhost / 127.0.0.1) on Windows platform

I just updated my Apache and PHP versions on a development machine and PDO has totally crapped out.

This is the dead simple PDO class:

class PDO_DBH {
    public static function openSesame() {
        echo '<p>start openSesame: </p>'.microtime(true);
        $db_username = 'root';
        $db_password = 'pass';
        try {
            $dbh = new PDO('mysql:host=localhost;dbname=DB_NAME', $db_username, $db_password);
            $dbh->setAttribute(PDO::ATTR_ERRMODE,PDO::ERRMODE_EXCEPTION);
            echo '<p>end successful openSesame: </p>'.microtime(true);
            return $dbh;
        } catch (PDOException $e) {
            echo '<p>end failed openSesame: </p>'.microtime(true);
            return 'PDO database access error!';
        }
    }
}

Prior to upgrading, and currently on other dev machines, a typical page will load in a second, two at most.

Now, via the wonders of microtime(true), I am seeing each connection opening requires about a full second.

A typical page may create a new $dbh and then $dbh = null; it 20 times as different objects and methods go about retrieving the data they need. This has never been a problem on other machines or on my webhost.

Where have I gone wrong here?

Answer 1

It was just a guess - but on windows machines changing to 127.0.0.1 instead of localhost does the trick.