问题描述：

I have a custom image field for all pages with a specific page template (using ACF plugin).

I\'m querying for these pages like so:

    $posts = get_posts(array(
\'posts_per_page\'    => -1,
\'post_type\'         => \'page\',
\'meta_key\'      => \'_wp_page_template\',
\'meta_value\'    => \'services-page.php\'
));

Then I\'m displaying pages with a foreach loop:

if( $posts ): ?>
<?php foreach( $posts as $post ): setup_postdata( $post );?>
//content goes here
<?php endforeach; ?> 
<?php wp_reset_postdata(); ?>
<?php endif; ?>

Now I want to access the custom field to display inside the loop. But, below doesn\'t work. I\'m guessing because ACF fields don\'t get appended to the post object.

//Does not work    
$image = $post -> services_block_image

ACF has the get_field() function, but what can I do to get the field for each of the posts from my original query? Found ACF docs to be rather confusing on this (goes without saying I\'m a bit new to PHP).

网友观点：

 $image = get_field(\'services_block_image\'); // get the image
if( !empty($image) ): ?>
<img src=\\\"<?php echo $image[\'url\']; ?>\\\" alt=\\\"<?php echo $image[\'alt\']; ?>\\\" />
<?php endif; ?>