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I'm getting many Fatal errors like this in Wordpress 3.6.1, multisite with Buddypress:

PHP Fatal error: Call to a member function suppress_errors() on a non-object in /myblog/wproot/wp-includes/option.php on line 143

The non-object referred to is the global value $wpdb, in the line:

$suppress = $wpdb->suppress_errors();

which is in the function wp_load_alloptions()

Any ideas why $wpdb would not be set, and if there is anything to be done to remedy this? Sorry I don't have any more useful on this, the errors are isolated and don't show a stack trace.

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"the errors (…) don't show a stack trace" - they would if you were using xdebug.

It means $wpdb is not loaded yet, not loaded properly, or gone:

  • If you added code that calls it to your wp-config file or something to that order, remove it.
  • If you've a db.php file in wp-content, it's probably broken so rename it.
  • If you're messing around with things on a shutdown handler, do them earlier on the shutdown hook instead.
  • Thanks, I have xdebug on my dev server, but unfortunately can't reproduce these errors there. I will look into your third suggestion, though if that's the case it will be in a third party plugin. – Lemmy Nov 20 '13 at 16:22

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