_wp_get_image_size_from_meta() │ WP 4.4.0

Gets the image size as array from its meta data.

Used for responsive images.

Internal function — this function is designed to be used by the kernel itself. It is not recommended to use this function in your code.

No Hooks.

Returns

Array|false. Array of width and height or false if the size isn't present in the meta data.

Usage

_wp_get_image_size_from_meta( $size_name, $image_meta );
$size_name(string) (required)
Image size. Accepts any registered image size name.
$image_meta(array) (required)
The image meta data.

Changelog

Since 4.4.0 Introduced.

_wp_get_image_size_from_meta() code WP 7.0

wp-includes/media.php 
function _wp_get_image_size_from_meta( $size_name, $image_meta ) {
	if ( 'full' === $size_name ) {
		return array(
			absint( $image_meta['width'] ),
			absint( $image_meta['height'] ),
		);
	} elseif ( ! empty( $image_meta['sizes'][ $size_name ] ) ) {
		return array(
			absint( $image_meta['sizes'][ $size_name ]['width'] ),
			absint( $image_meta['sizes'][ $size_name ]['height'] ),
		);
	}

	return false;
}