WC_Regenerate_Images::resize_and_return_image() │ private static │ WC 1.0

Regenerate the image according to the required size

Method of the class: WC_Regenerate_Images{}

No Hooks.

Return

String.

Usage

$result = WC_Regenerate_Images::resize_and_return_image( $attachment_id, $image, $size, $icon );
$attachment_id(int) (required)
Attachment ID.
$image(array) (required)
Original Image.
$size(string) (required)
Size to return for new URL.
$icon(true|false) (required)
If icon or not.

WC_Regenerate_Images::resize_and_return_image() code WC 7.5.0

woocommerce/includes/class-wc-regenerate-images.php 
private static function resize_and_return_image( $attachment_id, $image, $size, $icon ) {
	if ( ! self::is_regeneratable( $attachment_id ) ) {
		return $image;
	}

	$fullsizepath = get_attached_file( $attachment_id );

	if ( false === $fullsizepath || is_wp_error( $fullsizepath ) || ! file_exists( $fullsizepath ) ) {
		return $image;
	}

	if ( ! function_exists( 'wp_crop_image' ) ) {
		include ABSPATH . 'wp-admin/includes/image.php';
	}

	self::$regenerate_size = is_customize_preview() ? $size . '_preview' : $size;

	if ( is_customize_preview() ) {
		$image_size = wc_get_image_size( $size );

		// Make sure registered image size matches the size we're requesting.
		add_image_size( self::$regenerate_size, absint( $image_size['width'] ), absint( $image_size['height'] ), $image_size['crop'] );

		$thumbnail = self::get_image( $fullsizepath, absint( $image_size['width'] ), absint( $image_size['height'] ), $image_size['crop'] );

		// If the file is already there perhaps just load it if we're using the customizer. No need to store in meta data.
		if ( $thumbnail && file_exists( $thumbnail['filename'] ) ) {
			$wp_uploads     = wp_upload_dir( null, false );
			$wp_uploads_dir = $wp_uploads['basedir'];
			$wp_uploads_url = $wp_uploads['baseurl'];

			return array(
				0 => str_replace( $wp_uploads_dir, $wp_uploads_url, $thumbnail['filename'] ),
				1 => $thumbnail['width'],
				2 => $thumbnail['height'],
			);
		}
	}

	$metadata = wp_get_attachment_metadata( $attachment_id );

	// Fix for images with no metadata.
	if ( ! is_array( $metadata ) ) {
		$metadata = array();
	}

	// We only want to regen a specific image size.
	add_filter( 'intermediate_image_sizes', array( __CLASS__, 'adjust_intermediate_image_sizes' ) );

	// This function will generate the new image sizes.
	$new_metadata = wp_generate_attachment_metadata( $attachment_id, $fullsizepath );

	// Remove custom filter.
	remove_filter( 'intermediate_image_sizes', array( __CLASS__, 'adjust_intermediate_image_sizes' ) );

	// If something went wrong lets just return the original image.
	if ( is_wp_error( $new_metadata ) || empty( $new_metadata ) ) {
		return $image;
	}

	if ( isset( $new_metadata['sizes'][ self::$regenerate_size ] ) ) {
		$metadata['sizes'][ self::$regenerate_size ] = $new_metadata['sizes'][ self::$regenerate_size ];
		wp_update_attachment_metadata( $attachment_id, $metadata );
	}

	// Now we've done our regen, attempt to return the new size.
	$new_image = self::unfiltered_image_downsize( $attachment_id, self::$regenerate_size );

	return $new_image ? $new_image : $image;
}