PHP 8 compatibility

[wanmad]

using php 7.4, code is ok but not ok on php 8.0

$final_image = rand(1000,1000000).$img;
$path = "assets/image/staff/".strtolower($final_image);
$magicianObj = new imageLib($path);
$magicianObj -> resizeImage(64, 64, 'crop');
$newPath = "assets/image/staf/".$id.".jpg";
$magicianObj -> saveImage($newPath,100);

error saveImage: This is not a resource..

[2konrad]

Hey, the neccessary change was already implemented and suggested as a pull reuqest (#22).
If you take this version, it should work:

https://github.com/naftali100/php-image-magician

[MB1997]

Search for all calls of is_resource() and change them to
is_resource($this->imageResized) || $this->imageResized instanceof \GdImage

and it should work fine again.