menu.php

<?php
if ( ! defined( 'ABSPATH' ) )
	 exit;

	 if(isset($_GET['page']) && $_GET['page']=='php-code-manage' ){
	     ob_start();
	 }
add_action('admin_menu', 'php_code_menu');

function php_code_menu(){

		$phpCodeIcon = 'data:image/svg+xml;base64,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';
	
	add_menu_page('php-code', 'Sacalito´s Code', 'manage_options', 'php-code-manage','php_code_settings', $phpCodeIcon);
		//add_submenu_page('php-code-manage', 'PHPCode - Manage settings', 'Settings', 'manage_options', 'php-code-settings' ,'php_code_settings');	
}

function php_code_settings(){

	require( dirname( __FILE__ ) . '/settings.php' );
}