Imagick knowing the image size? (file size)

 $im = new Imagick($path);
 $im->re开发者_JS百科sizeImage();

 echo $im->calc_image_size(); ? //> 121312 Bytes

Is there a calc_image_size or I have to write in a file and check the dimension? (fail)

getImageSize throws a Deprecated.

Imagick::getImageSize is deprecated. Imagick::getImageLength should be used instead

http://php.net/manual/en/function.imagick-getimagelength.php

If you compress the image you can determine the size like this

$data = $im->__toString();
$imageSize = strlen($data);

See this Imagick::getImageSize