wp_calculate_image_sizes ( $size, $image_src = null, $image_meta = null, $attachment_id = 0 )

  • (array|string) $size Image size to retrieve. Accepts any valid image size, or an array of width and height values in pixels (in that order). Default 'medium'.
  • (string) $image_src Optional. The URL to the image file. Default null.
  • (array) $image_meta Optional. The image meta data as returned by 'wp_get_attachment_metadata()'. Default null.
  • (int) $attachment_id Optional. Image attachment ID. Either `$image_meta` or `$attachment_id` is needed when using the image size name as argument for `$size`. Default 0.
  • (string|bool) A valid source size value for use in a 'sizes' attribute or false.
Defined at:


Creates a 'sizes' attribute value for an image.

Related Functions

wp_calculate_image_srcset, wp_get_attachment_image_sizes, wp_save_image_file, wp_get_additional_image_sizes, wp_get_image_mime

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