WordPress: Get attached image height and width

Question

In WordPress, I am grabbing attached images from a post and displaying them in an unordered list. It works great, except I need to now get the image height and width, in the same way that I got the src. This is my code:

PHP

$post_thumbnail_id = get_post_thumbnail_id( $iPostID );
foreach( $arrKeys as $key) {
    if( $key == $post_thumbnail_id )
        continue;
    $sImageUrl = wp_get_attachment_url($key);
    $sImgString = '<li><img src="' . $sImageUrl . '" alt="Thumbnail Image" /></li>';
    echo $sImgString;
}

Any idea how I can do this?

Answer 1

You can use wp_get_attachment_image_src($attachment_id), it should return an array like ('/path/to/img.jpg',32,64) where 32 is the width and 64 is the height... Read the wordpress codex for more information on the usage of this function.

Answer 2

You can also do something like this:

$image_attributes = wp_get_attachment_image_src( $attachment_id = 8 );
if ( $image_attributes ) : ?>
    <img src="<?php echo $image_attributes[0]; ?>" width="<?php echo $image_attributes[1]; ?>" height="<?php echo $image_attributes[2]; ?>" />
<?php endif; ?>

Answer 3

@rgb_life Specify the 'full' parameter:

wp_get_attachment_image_src($id, 'full')