Wordpress media library custom taxonomy get image - php

Question

I am using this code here to get images from media library using custom taxonomy. It gets the image url fine, but I want to get image id and title. How do I do that?
This is what I have so far.
function get_images_from_media_library($cat) {
$args = array(
'post_type' => 'attachment',
'post_mime_type' =>'image',
'post_status' => 'inherit',
'posts_per_page' => 6,
'orderby' => 'rand',
'tax_query' => array(
array(
'taxonomy' => 'gallery-category',
'field' => 'slug',
'terms' => $cat
)
)
);
$query_images = new WP_Query( $args );
$images = array();
foreach ( $query_images->posts as $image) {
$images[]= $image->guid;
echo $image->ID; // Returns image ID, but I need it in display_images_from_media_library function
}
return $images;
}
function display_images_from_media_library($cat) {
$imgs = get_images_from_media_library($cat);
foreach($imgs as $img) {
$html .= '<img src="' . $img . '" alt="">';
}
return $html;
}

Answer 1

get_images_from_media_library() returns an array of image URLs therefore display_images_from_media_library() never has access to anything other than those URLs. If you wish to access the ID and title as well you'll need to make a couple of updates.
Inside get_images_from_media_library(), change this:
$images = array();
foreach ( $query_images->posts as $image) {
$images[]= $image->guid;
echo $image->ID; // Returns image ID, but I need it in display_images_from_media_library function
}
return $images;
To this:
return $query_images->posts;
The original code looped through the images and added their URLs to a new array. Here we're going to return the images in their original form.
Then we need to update the function that uses those images.
Change this:
$html .= '<img src="' . $img . '" alt="">';
To this:
$html .= '<img src="' . $img->guid . '" alt="">';
In my answer I've modified the code you've written to arrive at the desired result. I would however advise that you change the way you're retrieving the images in the first place. WP_Query isn't the most efficient way of handling it. Consider get_posts() instead.