yii2 imagine. How to crop an image proportionally in width?

Question

Yii

BaseImage::thumbnail($_FILES["attachment"]["tmp_name"]["file"],1000,0)->save($folder.$_FILES["attachment"]["name"]["file"]);

You need to crop the image proportionally to the width. If you set the height to 0, then an error appears. If you do not set - also an error:

exception 'Imagine\Exception\InvalidArgumentException' with message 'Length of either side cannot be 0 or negative, current size is 1000x0'

If you set the height, then everything works.

Answer 1

$img = imagine\Image::getImagine()->open(Yii::getAlias($fullName));

$size = $img->getSize();
$ratio = $size->getWidth()/$size->getHeight();

$width = 200;
$height = round($width/$ratio);

$box = new Box($width, $height);
$img->resize($box)->save($filePath.'/thumb/' . $fileName);

// OR:

imagine\Image::thumbnail($fullName,$width,$height)
        ->save($filePath.'/thumb/' . $fileName);