The only way that function returns an instance of WP_Error is if $cat (in your example) has an empty value. You need to check the return before doing anything with it. Replacing that line with this should fix the problem: echo is_wp_error( $cat_parents = get_category_parents($cat, TRUE, ” . $delimiter . ”) ) ? ” : … Read more
The error is in custom-functions.php line 529 where you might be using file system function outside of admin, you can fix this by including the core admin file.php file like this. require_once(ABSPATH . ‘wp-admin/includes/file.php’);
To diagnose a load-intensive (either CPU cycles or memory) Plugin, start by deactivating all Plugins. Ensure that, with no Plugins active, you do not observe the same issues. If you observe the same issues with all Plugins deactivated, then the problem is somewhere else, either with your Theme, your database, or your server configuration. If … Read more
When transferring wordpress site from one server to another First step is to udate wp-content foder on old site with new site’s wp-content Then, database ( drop old database, import new database ) finally update wordpress database table with following step. Login to your phpmyadmin dashboard, choose your database to update and click on sql … Read more
You are calling the function too early. The functions.php is included before current_user_can() is defined. Never do anything before the hook ‘after_setup_theme’: Example for the functions.php add_action( ‘after_setup_theme’, array( ‘WPSE_14041_Base’, ‘setup’ ) ); class WPSE_14041_Base { public static function setup() { ! isset ( $GLOBALS[‘content_width’] ) and $GLOBALS[‘content_width’] = 480; add_theme_support( ‘post-thumbnails’, array( ‘post’, ‘page’ … Read more
This issue usually stems from PHP configuration issues, APC caching, and/or a call to an incompatible XML library. From what I’ve seen, it is usually a combination of php 5.2.X and caching. If you’re using caching on your site, try switching from APC/memcached cache to disk caching and see if it clears up. 9/10 times, … Read more
In my case, nothing about debugging and disabling themes/plugins was useful… After some research, I’ve realized that my index.php was empty! The only content was a message saying Silence is golden. Using a backup I had, I could get back my original index.php and get the site working again.
No need to go here and there. I was facing the same issue and here is the only solution Fix wp-blog-header.php error
To get WordPress to display errors, edit the wp-config.php file to say define( ‘WP_DEBUG’, true ); By default, this is set to false and should be towards the bottom of the file. That will allow you to see which errors are being produced. Also, whitespace at the end of files almost never causes the WSOD; … Read more
There were wp files in the web root which had file size of 0 bytes. Uploading proper copies from the zip file resolved the problem. The same cause of the problem has occurred to me quite a few times in the past, but I had forgotten it.