Show all post attachments

Show attachments

<?php
	  $attachment_args = array(
		  'post_type'		=> 'attachment',
			'numberposts'	=> -1,
			'post_status' 	=> 'any',
			'post_parent' 	=> get_the_ID()
		);

		$attachments = get_posts( $attachment_args );

    if ( $attachments ) {
      $attachment_return = '<ul class="attachments">';
			  foreach ( $attachments as $attachment ) {
				  $attachment_src = wp_get_attachment_image_src( $attachment->ID, 'full' );
          
          $attachment_return .= '<li>';
					$attachment_return .= '<a rel="INSERT_YOUR_CLASS_HERE" href="'. $attachment_src[0] .'" title="'. apply_filters( 'the_title', $attachment->post_title ) .'">';
					$attachment_return .= wp_get_attachment_image( $attachment->ID, 'thumbnail' );
					$attachment_return .= '</a>';
					$attachment_return .= '</li>';
				}
      $attachment_return .= '</ul>';
      
      echo $attachment_return;
	}
?>