How to create admin panel in wordpress - php

Question

function init_form_fields() {
$this->form_fields = array(
'enabled' => array(
'title' => __( 'Enable/Disable', 'woocommerce_payu_in' ),
'type' => 'checkbox',
'label' => __( 'Enable PayUMoney', 'woocommerce_payu_in' ),
'default' => 'yes'
)
);
}
I am getting this code from pay-u plugin. Using this code I want to create my own admin panel, but I don't understand what this code means.

Answer 1

This is the tutorial page of wordpress where you can find a solution to add a admin page.
https://codex.wordpress.org/Administration_Menus
Wordpress Information:
Here is a very simple example of the three steps just described. This
plugin will add a sub-level menu item under the Settings top-level
menu, and when selected, that menu item will cause a very basic screen
to display. Note: this code should be added to a main plugin PHP file
or a separate PHP include file.
This is the wordpress example code:
<?php
/** Step 2 (from text above). */
add_action( 'admin_menu', 'my_plugin_menu' );
/** Step 1. */
function my_plugin_menu() {
add_options_page( 'My Plugin Options', 'My Plugin', 'manage_options', 'my-unique-identifier', 'my_plugin_options' );
}
/** Step 3. */
function my_plugin_options() {
if ( !current_user_can( 'manage_options' ) ) {
wp_die( __( 'You do not have sufficient permissions to access this page.' ) );
}
echo '<div class="wrap">';
echo '<p>Here is where the form would go if I actually had options.</p>';
echo '</div>';
}
?>