When testing WordPress themes or plug-ins, you may create several custom fields. After testing WP themes and plug-ins, some plug-ins are deactivated, but their custom fields are still in the drop-down list. Although it has an impact on blog usage It’s not big, but it obviously doesn’t look good if a useless thing is placed there. However, there is no place to delete custom fields in the WP backend, but it can be deleted through phpMYADMIN. Let’s introduce it in the blog below.
Remove WP custom fields via PHPMYADMIN:
1. Log in to the PHPMYADMIN management of your website and select the database used by your WordPress blog.
2. Execute the following SQL statement in SQL
DELETE FROM wp_postmeta WHERE meta_key ='XXXX';
3. It means to delete the things whose meta_key is XXXX in the wp_postmeta table, where XXXX is the name of the custom field to be deleted, and change it to your own custom field name according to your own situation.
Reminder: Please back up your data before proceeding.
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» The address of this article: http://www.boke8.net/wordpress-delete-custom-fields.html
Thanks for the blog post