Can you use add_filter() inside other function?

Question

I’m new to WordPress, and currently developing my first plugin and currently having difficulties.

How I can insert the add_filter action inside my submit function? I want the add_filter action to process after the user click the submit button.

I have try this but it didn’t work.

if(isset($_POST['btn_submit'])) {

    function addContent($content = '') {            
        $content .= "My content";

        return $content;
    }

    add_filter('the_content', 'addContent');
}

Any help would be greatly appreciated. Thanks!

0
ronniel 5 months 0 Answers 71 views 0

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