Php Imagick not working after ubuntu upgrade - php

Question

I am getting an error while converting pdf to image file on server but working on local system.
My Php Script
$img = new \Imagick();
$image = file_get_contents($file);
$img->readImageBlob($image);
$response = $img->getnumberimages();
Error Occurred
Unrecoverable error: typecheck in .bind
Operand stack:
--nostringval-- typecheck --nostringval-- currentglobal .currentglobal
System Configurations
Local System Configuration
Imagick: ImageMagick 6.7.7-10 2018-09-28
UBUNTU: 14.04 LTS
PHP: PHP 7.0.32-4+ubuntu14.04.1+deb.sury.org+1
gs: 9.25
Server System Configuration
Imagick: ImageMagick 6.8.9-9 Q16 x86_64 2018-09-28
UBUNTU: 16.04.1 LTS
PHP: PHP 7.0.32-0ubuntu0.16.04.1
gs: 9.25
I have trying to revert version of Imagick to 6.7 but not able to revert the version
Also I have try to change policy.xml file but no luck.

Answer 1

Reverting Image Magick most likely won't do you any good anyway, since that is a Ghostscript error message.
Without seeing the input file I can't guess at what's wrong, but in the absence of that you have 2 choices;
1) Revert your Ghostscript version to 9.23 and try again.
2) Try building Ghostscript from source, its possible that the package maintainers have made some change which isn't in the vanilla sources, and is only exposed on the later version of Ubuntu.
You could also try running Ghostscript on the command line and see what happens on the two systems. You'll need to get the command line from polixy.xml and replace the various variables with the correct filenames.
You can try that on both systems to see what happens. Finally, you can compare the binary size of the Ghostscript executable, to see if they are actually the same on the two systems. If they are not you could copy the working one from your local system to your server and see if that works.