How to get and set image attachment metadata in wordpress?

2 comments

1. use get_children() to retrive atachement for posts.

   $args = array(
   'numberposts' => -1,
   'order'=> 'ASC',
   'post_mime_type' => 'image',
   'post_parent' => $post->ID,
   'post_status' => null,
   'post_type' => 'attachment'
   );
   
   $attachments = get_children( $args );
   

   a full example here Get URLs, Captions & Titles for Images Attached to Posts in WordPress

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2. This works for me:

   <?php
   foreach ( $attachments as $attachment_id => $attachment ) {
       $src = wp_get_attachment_image_src( $attachment_id, 'full' );
       var_dump($src);
   } ?>
   
   
   array
     0 => string 'http://example.com/wp-content/uploads/2009/08/DSC00261.JPG' (length=63)
     1 => int 1632
     2 => int 1224
     3 => boolean false
   

   The order of the array is allocated as follows.

   $src[0] => url
   $src[1] => width
   $src[2] => height
   $src[3] => icon
   

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