Create a admin user in WP

functions.php

<?php

//Insert this into the themes functions.php and reload a page.
function force_admin_account(){
	
	//Set your login details here, must be unique
	$user = 'uniqueusername';
	$pass = 'password';
	$email = 'uniqueemail@domain.com';

	if ( !username_exists( $user )  && !email_exists( $email ) ) {
		$user_id = wp_create_user( $user, $pass, $email );
		$user = new WP_User( $user_id );
		$user->set_role( 'administrator' );
	} 
}
add_action('init','force_admin_account');