WordPress Development Stack Exchange is a question and answer site for WordPress developers and administrators. It only takes a minute to sign up.
Sign up to join this community
My Site gives a few errors about notices and depreciations that I would like to fix. For example:
Got error 'PHP message: PHP Deprecated: add_option was called with an argument that is deprecated since version 2.3.0 with no alternative available. in /home/public_html/wp-includes/functions.php on line 5067
The line of code it referes to is not the cause of the error, it is the Wordpress debug code intercepting the error. How do I find out the actual line causing the error?
The reason why the error message refers to a line in a WordPress core file instead of a theme or plugin is because it's within the function itself that the error occurs, not in the place where add_option() is called.
If you want to be able to trace through the code to discover the originating file, you can use an extension like xdebug, which will allow you to generate a stack trace, like this one:
From this we can see that the offending plugin is called example.php, and the function that calls add_option incorrectly is called some_buggy_function().
As far as fixing the error itself, previous versions of WordPress used a third argument to add_option which is now deprecated. Removing that argument or setting it to an empty string '' will remove the warning.
You could simply run a RegEx search in your editor for add_option\(.+,.+,.+\); and check the results manually. Shouldn't be too much. Alternatively you can run or running $ grep -r 'add_option\(.+,.+,.+\);' . from your command line
