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wp_get_attachment_image_url( int $attachment_id, string|array $size = 'thumbnail', bool $icon = false )

Get the URL of an image attachment.

Parameters

$attachment_id

(int) (Required) Image attachment ID.

$size

(string|array) (Optional) Image size to retrieve. Accepts any valid image size, or an array of width and height values in pixels (in that order).

Default value: 'thumbnail'

$icon

(bool) (Optional) Whether the image should be treated as an icon.

Default value: false

Return

(string|false) Attachment URL or false if no image is available.

Source

File: wp-includes/media.php 

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;
}

Changelog

Version Description
4.4.0 Introduced.

© 2003–2019 WordPress Foundation
Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/functions/wp_get_attachment_image_url