Adding a Custom Checkbox to the Post “Publish” Box of wordpress-CodePudding

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Adding a Custom Checkbox to the Post “Publish” Box of wordpress

Time：10-26

Thanks to an article I found

CodePudding user response：

You're missing the quotes in your add_action functions for the callback. That's why it thinks it is an undefined constant.

add_action('post_submitbox_misc_actions', 'createCheckBoxField');