Some Notes
- You shouldn’t use anonymous/lambda fn, closures for hooks – Those can’t get unregistered.
- Create your nonces, when localizing the script – See for ex. this answer.
- The
ajaxurl
isn’t set by default. You’ll have to define it (and let it point to admin-ajax.php) when localizing the script. Then you access it via the localized object (the 2nd argument insidewp_localize_script()
) like this:your_obj_name.ajaxurl
.
You should also take a look at the Codex article about Ajax in Plugins.
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