WordPress Child Theme Setup

functions.php

<?php
function my_theme_enqueue_styles() {

$parent_style = 'parent-style'; // This is 'twentyfifteen-style' for the Twenty Fifteen theme.

wp_enqueue_style( $parent_style, get_template_directory_uri() . '/style.css' );
 wp_enqueue_style( 'child-style',
 get_stylesheet_directory_uri() . '/style.css',
 array( $parent_style ),
 wp_get_theme()->get('Version')
 );
}
add_action( 'wp_enqueue_scripts', 'my_theme_enqueue_styles' );

style.css

/*
 Theme Name: Twenty Fifteen Child
 Theme URI: http://example.com/twenty-fifteen-child/
 Description: Twenty Fifteen Child Theme
 Author: John Doe
 Author URI: http://example.com
 Template: twentyfifteen
 Version: 1.0.0
 License: GNU General Public License v2 or later
 License URI: http://www.gnu.org/licenses/gpl-2.0.html
 Tags: light, dark, two-columns, right-sidebar, responsive-layout, accessibility-ready
 Text Domain: twenty-fifteen-child
*/