WordPress Version: 6.1
/**
* Gets the URL of an image attachment.
*
* @since 4.4.0
*
* @param int $attachment_id Image attachment ID.
* @param string|int[] $size Optional. Image size. Accepts any registered image size name, or an array of
* width and height values in pixels (in that order). Default 'thumbnail'.
* @param bool $icon Optional. Whether the image should be treated as an icon. Default false.
* @return string|false Attachment URL or false if no image is available. If `$size` does not match
* any registered image size, the original image URL will be returned.
*/
function wp_get_attachment_image_url($attachment_id, $size = 'thumbnail', $icon = false)
{
$image = wp_get_attachment_image_src($attachment_id, $size, $icon);
return isset($image[0]) ? $image[0] : false;
}