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1. k12onos
   Member
   Posted 11 months ago #
   

   Hi,

   I have several custom post types in my site and I added the flush_rewrite_rules() inside the last register post type function in my function.php theme file.

   This works and stops 404 pages, but after a while the rewrite_rules in wp_options started to act up and it periodically appear in my mysql_slow_queries log file.

   I've tried to search about this but find varying answers, lots of which I don't know how to apply. I haven't been able to understand the explanation in register post type codex on how to use it on register_activation_hook too.

   Can anyone please give me some help on how to correctly call flush_rewrite_rules()?

2. Seacoast Web Design
   Member
   Posted 11 months ago #
   

   This is quite dependent on how your site is designed and why you need to flush php (and what version of all is in use).

   immediately after the </head> try:
   <?php flush(); ?>

   works for most sites. If not visit php.net.

3. k12onos
   Member
   Posted 11 months ago #
   

   isn't that to speed up page loadings?

   What i'm referring to is flush_rewrite_rules() which is, according to various sources, should be added if you experience 404 pages with custom post types.

4. k12onos
   Member
   Posted 11 months ago #
   

   Anyone got any idea on this?

   And I have another question,

   $wp_rewrite->flush_rules();

   and

   flush_rewrite_rules()

   are they basically the same thing?

5. Coldfight
   Member
   Posted 11 months ago #
   

   Anybody with an answer?

   I have that exact same question. The way I'm doing it right now, though (not sure if it's correct), is:

   function foo() {
       bar();
       flush_rewrite_rules();
   }
   register_activation_hook( __FILE__, 'foo' );
   
   add_action('init', 'bar');
   function bar() {
       //...
       register_post_type( 'other' , $args );
       //register_taxonomy(...);
   }

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