Right way to use <title> tags in WordPress themes. add_theme_support( 'title-tag' );

gistfile1.txt

<?php
/*
 * call the oopthemes_after_setup function when theme is initialized.
 */
 
add_action( 'after_setup_theme', 'oopthemes_after_setup' );
function oopthemes_after_setup() {
	/**
	 * Add support for the <title> tags.
	 * @since WordPress 4.1
	 */
	add_theme_support( 'title-tag' );
}