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I am trying to debug my save_post function and cannot get the $_POST array to print so that I can see what's being posted. Please help!

add_action ('save_post', 'save_events');

function save_events($post_id){
    if (('event' == $_POST['post_type']) && ('publish' == $_POST['post_status']) && ( $_POST['original_post_status'] != 'publish' )){ 
               print_r($_POST);

                       //function code...
            }
}
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Either add a die after that print_r() or (better) use error_log() instead of print_r() and look at your php error logs for the output.

What's happening is WordPress is reloading content before you get a chance to see the output (in most cases).

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