I have been updating my site to PHP 7.1.7 as well as IIS and have run into an issue with imagecreatetrucolor throwing a 500 error.
http://localhost/test.php 500 (Internal Server Error)
The only line of code in that file is
<?php imagecreatetruecolor(10,10) ?>
This has been working in the site under PHP 5.6.31 and Apache and returns
resource(2) of type (gd)
GD imaging is listed in with phpinfo() under 7.1.7 as
GD imaging Rasmus Lerdorf, Stig Bakken, Jim Winstead, Jouni Ahto, Ilia Alshanetsky, Pierre-Alain Joye, Marcus Boerger
This is the error
Fatal error: Uncaught Error: Call to undefined function imagecreatetruecolor() in D:\Intranet\www\public\test.php:11 Stack trace: #0 {main} thrown in D:\Intranet\www\public\test.php on line 11
What could the problem be?