Change Google fonts for Bunny Fonts

bunny-hop.php

<?php
/**
 * Plugin Name: Bunny Hop.
 * Plugin URI: https://prothemedesign.com
 * Description: Swap Google fonts for Bunny Fonts to make the fonts GDPR compliant.
 * Author: Ben Gillbanks
 * Version: 1.0
 * Author URI: https://prothemedesign.com
 */

/**
 * Filter the incoming urls and replace google fonts ones with bunny fonts.
 *
 * @param string $src The string source to check.
 * @return string
 */
function bunny_fonts_swap_src( $src ){

	// Order is important here.
	$src = str_replace( 'fonts.googleapis.com/css2', 'fonts.bunny.net/css', $src );
	$src = str_replace( 'fonts.googleapis.com/css', 'fonts.bunny.net/css', $src );
	$src = str_replace( 'fonts.googleapis.com', 'fonts.bunny.net', $src );

	return $src;

}

// Change font embed urls.
add_filter( 'style_loader_src', 'bunny_fonts_swap_src' );
// Change dns-prefetch urls.
add_filter( 'wp_resource_hints', 'bunny_fonts_swap_src' );