Question

How would I adjust this code to not show the image when there is no value for the custom field “imageembed”?

<?php $imageid = get_post_meta($post->ID, 'imageembed', true); ?>

   <div class="newsimage"><img src="<?php echo wp_get_attachment_url( $imageid ); ?>" width="640" /></div>

Answer 1

Something like this

<?php    
  if (strlen($imageid = get_post_meta($post->ID, 'imageembed', true))) {
?>
    <div class="newsimage"><img src="<?php echo wp_get_attachment_url((int) $imageid); ?>" width="640" /></div>
<?php } ?>