[wp-hackers] WorPress dies silently without MySQL PHP extention

Andrew Nacin anacin at gwhatchet.com
Fri Dec 4 15:29:07 UTC 2009

When you don't have the MySQL extension called, wp-settings.php intercepts:

if ( !extension_loaded
&& !file_exists
<http://phpxref.ftwr.co.uk/wordpress/_constants/WP_CONTENT_DIR.html> .
'/db.php') )    die( /*WP_I18N_OLD_MYSQL*/'Your PHP installation
appears to be missing the MySQL extension which is required by
WordPress.'/*/WP_I18N_OLD_MYSQL*/ );

Note that check for wp-content/db.php -- that's what Otto referred to above:

> To support another DB, you'd basically make your own db.php file in
> the wp-content directory, then the wp-db.php never gets loaded.

Scribu and Ozh already mentioned that if the mysql connection has a
problem (like the next line after @mysql_connect), it'll die anyway
with an error establishing the database connection. Thus, you're not
supposed to get a straight-up blank screen.

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