Title: PHP Error
Last modified: August 19, 2016

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# PHP Error

 *  [captaintomberlin](https://wordpress.org/support/users/captaintomberlin/)
 * (@captaintomberlin)
 * [15 years, 11 months ago](https://wordpress.org/support/topic/php-error-8/)
 * Last days I made several modifications of the original PHP code of WP. Afterwards
   I realized that there are error entries in my error log with almost any HTTP 
   request to my blog (except RSS files and some other stuff out side the WP HTML
   pages). The error message is:
 * PHP Warning: call_user_func_array() [function.call-user-func-array]: First argument
   is expected to be a valid callback, ‘feed_links_extra’ was given in /home/polkomm/
   htdocs/blog/wp-includes/plugin.php on line 339
 * That’s line 339 which is part of the function do_action:
 * call_user_func_array($the_[‘function’], array_slice($args, 0, (int) $the_[‘accepted_args’]));
 * I have re-done all of my code modifications (at least I hope so). As my server
   provider recommended I have also de-activated the only plus-in I am useing, Akismet(
   which deletes spam postings). But unfortunately the error remains. I am wondering
   if it is not my PHP code which causes the problems.
 * Is there anybody who can give me a hint how I can fix that?
 * Thanks
    Tom

The topic ‘PHP Error’ is closed to new replies.

## Tags

 * [callback](https://wordpress.org/support/topic-tag/callback/)
 * [php-error](https://wordpress.org/support/topic-tag/php-error/)

 * 0 replies
 * 1 participant
 * Last reply from: [captaintomberlin](https://wordpress.org/support/users/captaintomberlin/)
 * Last activity: [15 years, 11 months ago](https://wordpress.org/support/topic/php-error-8/)
 * Status: not resolved

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