<?php $postData = get_post( $id, $output, $filter ); 


echo "<pre>";
print_r($postData);
?>

***************************

<div class="mundo_03"  style="display: grid;">
<?php
$current_user = wp_get_current_user();
$user_info = get_userdata($current_user->ID);
//
////take posts array
query_posts(array(
'post_type' => 'testimonial',
));
while (have_posts()) : the_post();
get_the_ID();
?>
<span style="line-height: 1px; background-color: #e1e1e1; border: 1px solid; border-color: #ffffff; border-radius: 8px; box-shadow: 4px 4px 16px red;"><h5>Задача: <a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></h5><br>
		<h5 style="color: blue;">Да направя: <?php the_content(); ?></h5></span><br>
<?php
	endwhile;
?>	
</div>