image_constrain_size_for_editor ( $width, $height, $size = 'medium', $context = null )

  • (int) $width Width of the image in pixels.
  • (int) $height Height of the image in pixels.
  • (string|array) $size Optional. Image size. Accepts any valid image size, or an array of width and height values in pixels (in that order). Default 'medium'.
  • (string) $context Optional. Could be 'display' (like in a theme) or 'edit' (like inserting into an editor). Default null.
  • (array) Width and height of what the result image should resize to.
Defined at:


Scale down the default size of an image.

This is so that the image is a better fit for the editor and theme.

The $size parameter accepts either an array or a string. The supported string values are 'thumb' or 'thumbnail' for the given thumbnail size or defaults at 128 width and 96 height in pixels. Also supported for the string value is 'medium', 'medium_large' and 'full'. The 'full' isn't actually supported, but any value other than the supported will result in the content_width size or 500 if that is not set.

Finally, there is a filter named {@see 'editor_max_image_size'}, that will be called on the calculated array for width and height, respectively. The second parameter will be the value that was in the $size parameter. The returned type for the hook is an array with the width as the first element and the height as the second element.

Related Functions

image_media_send_to_editor, get_image_send_to_editor, media_send_to_editor, format_for_editor, image_resize_dimensions

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