wp_get_attachment_metadata()

wp_get_attachment_metadata() — Retrieves attachment metadata for attachment ID.

Inputs: $attachment_id (int): Attachment post ID. Defaults to global $post. $unfiltered (bool): Optional. If true, filters are not run. Default false.

Returns array|false: Attachment metadata. False on failure. Field $width (int): The width of the attachment. Field $height (int): The height of the attachment. Field $file (string): The file path relative to wp-content/uploads. Field $sizes (array): Keys are size slugs, each value is an array containing ‘file’, ‘width’, ‘height’, and ‘mime-type’. Field $image_meta (array): Image metadata. Field $filesize (int): File size of the attachment.