Image
Renders an image upload button with a preview thumbnail of the uploaded image. The built-in WordPress file handling interface is used.
Supported image formats are: jpg, jpeg, gif, png and bmp.
This field type stores the ID of the selected image.
Config methods
set_type( $mime_type ) (defaults to image)
Set the allowed files type. Short mime types are also supported (audio, video, image).
set_value_type( $value_type )
Set the type of the stored value. (defaults to id)
You can also set the type to url to store the URL of the image instead of it’s ID.
Field::make( 'image', 'crb_employee_photo', 'Photo' )
    ->set_value_type( 'url' )
					
									