Как реализовать QR код на Wordpress?

<?php
require_once( 'wp-load.php' );

$args = array(
  'cat' => 2,
  'posts_per_page' => 100
);

$query = new WP_Query( $args );

if ( $query->have_posts() ) {
	while ( $query->have_posts() ) {
    $query->the_post();
    echo "<img src='http://chart.apis.google.com/chart?cht=qr&chs=300x300&chl=".get_permalink()."'><p>".get_the_title()."</p><hr>";
  }
}