Problem with create from PNG

[harlenpd]

Hi guys,

I'm not able to get the create-from-png.php and create-from-png-stream.php examples to work. I have copied and pasted the code exactly from the example files, along with the create-from-png-ref.png source image and my output file is always empty.

The confusing thing is that my PHP error log is quiet. If I misuse any of the functions I get errors reported as expected which leads me to believe that my implementation is correct.

Would anyone be able to help me determine what I am missing?

I'm using:
PHP: 7.2.2
Cairo: 1.14.8-2.el7