Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Development Tools Using PHP with MySQL Connecting PHP to MySQL Handling Exceptions

Posted by Mai Lon Ross
Mai Lon Ross
5,891 Points

Why am I getting a warning on the webpage too?

When I put an invalid database in the PDO string, I get a warning displayed on the webpage, in addition to the echoed message.

Warning: PDO::__construct(): php_network_getaddresses: getaddrinfo failed: No such host is known. in C:\xampp\htdocs\database.php on line 4
Could not connect to the database.

Randy only has the "Could not connect to the database message." Why?

My code is:

try {
    $db = new PDO("mysql:host=brokenhost;dbname=shirts4mike","root");
    var_dump($db);
} catch (Exception $e) {
    echo "Could not connect to the database.";
    exit;
}

It works fine with localhost instead of brokenhost.

1 Answer

Chris Shaw
Chris Shaw
26,676 Points
Chris Shaw
Chris Shaw
26,676 Points

Hi Mai Lon Ross,

Instead of Exception it should be PDOException as that is what the PDO class will throw as it contains extra data for debugging, change that and it should only show your echo statement.

Hope that helps.

Mai Lon Ross
Mai Lon Ross
5,891 Points

Hmm, when I change Exception to PDOException I still get the same output, with the Warning as well as the echoed statement.