Wordpress-将img url的数组打印到相应的标记中

我试图展示包含在 the_content() DOMDocument() 具体如下:

<?php
$content = get_the_content();
$dom = new DOMDocument;
 if ($dom->loadHTML($content)) {
  $imgs = $dom->getElementsByTagName('img');
   if ($imgs->length > 0) {
    foreach ($imgs as $img) {
     $img->getAttribute('src');
    }
   }
 }
?>

呼应 $img <img> 标签 src

<?php foreach ($imgs as $img) { ?>
                    <a class="fancybox" rel="galeria1" href="<?php echo htmlentities($img); ?>" title="teste">
                        <img class="img-responsive" src="<?php echo htmlentities($img); ?>" alt="" width="474" height="315"></a>
                    <?php } ?>

提前谢谢你。