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1. oncidium
   Member
   Posted 6 years ago #

   While updating a wp page today, I recieved this error:
   Fatal error: Call to undefined function: flush_rules() in .../blog/wp-includes/functions-post.php on line 199

   I looked at the functions-post file, and this is what seems to be causing the error:

   else if ($post_status == 'static') {
   $wp_rewrite->flush_rules();

   The page updated and saved to the database fine, so it doesn't make a huge use issue, but I'm not sure why that is happening.

2. n8them8c
   Member
   Posted 6 years ago #

   Did you discover an answer? I am having the same problem since upgrading to WP 2.0.1. When updating a page, I get

   Fatal error: Call to undefined function: flush_rules() in .../wp-includes/functions-post.php on line 200.

   But line 200 has only some comments on it. Any clues?

3. n8them8c
   Member
   Posted 6 years ago #

   I commented out "$wp_rewrite->flush_rules();" in my functions-post.php file and am now able to post and edit pages without a problem. I'm no php pro. Does anyone know what the flush_rules function does? Is it going to cause problems if I disable it? Thanks.

4. bilcha
   Member
   Posted 6 years ago #

   I ran in to this as well and finally tracked it down today. Commenting out the flush_rules calls will work but it will break your ability to create permalinks for new pages.

   Problem seems to be a missing function in /wp-includes/classes.php.

   To fix it look for...

   
$rules = apply_filters('rewrite_rules', $rules); // Deprecated

   return $rules;
}


   around line 1417, below it add...
   
function flush_rules() {
generate_page_rewrite_rules();
delete_option('rewrite_rules');
$this->wp_rewrite_rules();
if ( function_exists('save_mod_rewrite_rules') )
save_mod_rewrite_rules();
}


   What and where is easier seen here http://redalt.com/xref/trunk/nav.htm?wp-includes/classes.php.source.htm#l1417

5. forksteel
   Member
   Posted 6 years ago #

   hey bilcha,

   tried this and this worked for me!
   one question though: you state here to use "generate_page_rewrite_rules();"
   but your trunk shows
   "generate_page_uri_index();"
   what's the difference? which should i use?

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