I'm trying to debug a plugin which I didn't develop and I want to list all the registered actions. I've read this SO thread:
But it's specific to one hook and it's about filters, not actions.
Is there any variable like $wp_filter or something?
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Use this plugin to show visually on a page https://wordpress.org/plugins/show-hooks/– RafiqJun 23, 2020 at 13:46
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and you are the developer of that plugin, correct?– alexwc_Aug 24, 2020 at 2:57
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Yes, I made this plugin for myself and then host it in WordPress.– RafiqAug 25, 2020 at 15:59
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1 Answer
Filters and actions are both assigned to hooks. Functions assigned to hooks are stored in global $wp_filter variable. So all you have to do is to print_r it.
print_r($GLOBALS['wp_filter']);
PS. add_action function makes a add_filter call. And the latter does $wp_filter[$tag][$priority][$idx].
NOTE: you can directly add this code in functions.php, and you will see a debug on your site:
add_action('wp', function(){ echo '<pre>';print_r($GLOBALS['wp_filter']); echo '</pre>';exit; } );
answered Jul 2, 2013 at 14:52
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nice, but where can i debug them? i tried to add if(WP_DEBUG == true){ global $wp_filter; print_r($wp_filter); } in index.php nad i got NULL Jul 2, 2013 at 14:57
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Don't use the wp hook if you get memory problems. Place the code without hook in the functions.php.– jMikeSep 11, 2022 at 9:21