Use post thumb in any page?

I am not sure this is what you were looking for, but it may work. Call this function at the point where you want the thumbnail:

# Displays post image attachment (sizes: thumbnail, medium, full)
function dp_attachment_image($postid=0, $size='thumbnail', $attributes='') {
   if ($postid<1) $postid = get_the_ID();
   if ($images = get_children(array(
      'post_parent' => $postid,
      'post_type' => 'attachment',
      'numberposts' => 1,
      'post_mime_type' => 'image',)))
   foreach($images as $image) {
      $attachment=wp_get_attachment_image_src($image->ID, $size);
?>< img src="< ?php echo $attachment[0]; ?>" < ?php echo $attributes; ?> />< ?php
}
}?>

See.
https://codex.www.ads-software.com/Template_Tags/get_the_post_thumbnail

Supports passing an ID, just feed it the page’s ID instead of a post’s.

Despite the name, it should in theory work for any post type.

NOTE: Ultimately, get_the_post_thumbnail calls wp_get_attachment_image, which in turn calls wp_get_attachment_image_src. Either method should work, you might just find the above function a little more convenient.

Sure – why reinvent the wheel. Thanks for the tip.

brilliant thanks. I’ll try it.

Hi

this gives me all the the sub pages of the current page with id6.

<ul>
	<?php $pages =
	$parent = 6;
	$args=array(
  	'child_of' => $parent
	);
	$pages = get_pages($args);
	if ($pages) {
	echo get_the_post_thumbnail($page->ID);
  	$pageids = array();
  	foreach ($pages as $page) {
    	$pageids[]= $page->ID;
  	}
    	echo get_the_post_thumbnail($page->ID);
	wp_list_pages($args);
	}
	?>
</ul>

How can I do so that I get only 1 random sub page of all the sub pages of page id6?