How to get all images and their thumbnails from wp media library

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I have a function that returns all the images in WordPress media library, but the problem is that it doesn’t return all the image sizes of the image, ex: (thumbnail, small, large), it only returns the original image.

function get_images_highcompress_data()
{

     $args = array(
      'post_type' => 'attachment',
      'post_mime_type' => 'image/jpeg,image/jpg,image/png',
      'post_status' => 'inherit',
      'posts_per_page' => -1,
      'orderby' => 'id',
      'order' => 'ASC'
  );
  $query_images = new WP_Query( $args );
  $images = array();
  foreach ( $query_images->posts as $image) {
      $images[]= $image->guid;
  }

Is there any other function that can get all images URL from the wp media library with all its sizes.

Eg. Image01.jpg , image01-500X500.jpg, Image01-1080X1080.jpg, Image02.jpg , image02-500X500.jpg, Image02-1080X1080.jpg Like this in one single array.

1 Answer
1

Here’s what you can do.

  1. Get a list of all available thumbnail sizes
  2. Query all the attachments
  3. For each attachment size, get it’s URL and save it into the array

Let’s change your code into this:

function get_images_highcompress_data() {
    $args = array(
        'post_type' => 'attachment',
        'post_mime_type' => 'image/jpeg,image/jpg,image/png',
        'post_status' => 'inherit',
        'posts_per_page' => -1,
        'orderby' => 'id',
        'order' => 'ASC'
    );
    // Get all the available thumbnail sizes
    $sizes = get_intermediate_image_sizes();
    // Query the attachments
    $query_images = new WP_Query( $args );
    $images = array();
    // Run a loop
    if ( $query_images->have_posts() ){
        while ($query_images->have_posts()){
            $query_images->the_post();
            // For each attachment size, store its URL in an array
            foreach ( $sizes as $key => $size ) {
                $thumbnails[$key] = wp_get_attachment_image_src( get_the_ID(), $size)[0];
            }
            $images = array_merge( $thumbnails , $images );
        }
        return $images;
    }
}

The returned array will look like this:

[0] => thumbnail-url,
[1] => medium-url,
[2] => large-url,

And so on.

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