Erstes Bild aus Artikel auslesen

<?php
  function get_attached_images(){
    // This function runs in "the_loop", you could run this out of the loop but
    // you would need to change this to $post = $valid_post or something other than
    // using the global post declaration.
    global $post; 
    $args = array(
      'post_type' => 'attachment',
      'numberposts' => 1,
      'post_status' => null,
      'post_parent' => $post->ID,
      'order' => 'ASC',
      'orderby' => 'menu_order'
      ); 
    $attachment = get_posts($args); // Get attachment
    if ($attachment) {
      $img = wp_get_attachment_image_src($attachment[0]->ID, $size = 'full'); ?>
      <img alt="<?php the_title(); ?>" src="<?php echo $img[0] ; ?>" width="<?php echo $img[1] ?>" height="<?php echo $img[2] ?>"/>
  <?php }
  }
?>