Image sélectionnée comme image de fond sur les pages

Vous devez echo la valeur renvoyéepar wp_get_attachment_image_src().Il renvoie également un Array(),vous devez donc récupérer lapartienécessaire de cetableau.Dans ce cas,il s'agit de lapremière valeur/0.Exemple:

 <?php $thumb = wp_get_attachment_image_src( get_post_thumbnail_id($post->ID), 'full' );?>
<div id="post" class="your-class" style="background-image: url('<?php echo $thumb['0'];?>')">
<p>your text demo</p>
</div>
 

You need to echo the return value from wp_get_attachment_image_src(). It also returns an Array(), so you need to grab the needed part from that array. In this case it's the first/0 value. Example:

<?php $thumb = wp_get_attachment_image_src( get_post_thumbnail_id($post->ID), 'full' );?>
<div id="post" class="your-class" style="background-image: url('<?php echo $thumb['0'];?>')">
<p>your text demo</p>
</div>

Essayez d'utiliser lafonction the_post_thumbnail_url :

Obtient l'URL de l'image directepour l'image sélectionnée dumessage actuel.

 <div id="<?php echo post_name; ?>" class="page<?php 
echo $post_id; ?>" style="background: url(<?php 
echo get_the_post_thumbnail_url( $post_id, 'large' ); ?>) !important;">
 

Try to use the the_post_thumbnail_url function:

Gets the direct image URL for the featured image of the current post.

<div id="<?php echo post_name; ?>" class="page<?php 
echo $post_id; ?>" style="background: url(<?php 
echo get_the_post_thumbnail_url( $post_id, 'large' ); ?>) !important;">