I am using a plugin to show a form in admin that inputs some data from user.

This form submits to this url:


But when this url is called, although its an admin url, it does not set is_admin() to true and thus my admin handling code does not get called.

This is the handling code:

if ( is_admin() )
    require_once plugin_dir_path( __FILE__ ) . 'admin/core.php';
    require_once plugin_dir_path( __FILE__ ) . 'public/core.php';

When the form is called first time, is_admin() is true... but when the posted url (http://localhost/wordpress/wp-admin/my_settings_save.php) is called, is_admin() returns false and thus my admin/core.php is not called.

Any suggestions...?

1 Answer 1


Ok, here is what I found out to solve the issue:

First of all, the form should be posted to admin-post.php

2nd, there should be a hidden variable "action"

so the form should be like:

<form method="post" action="<?php echo esc_url( admin_url('admin-post.php') ); ?>">
    <input type="hidden" name="action" value="my_settings_save">

Now the is_admin() is true and my admin core file is called successfully.

In that admin core file, I only set this action:

add_action('admin_post_my_settings_save', 'my_settings_save_function');
function my_settings_save_function()

and it works like a charm!

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