I did a little test on those php files:
http://bknilssen.no/X/gameQ/
Exported to the web and made a folder called 'php' inside the gameQ folder where I put your files.
Works fine with this code inside a HTMLplaceholder rectangle:
<iframe name="gameQ" id="gameQ" src="php/example.php" width="100%" height="100%">Your browser does not support iframes </iframe>
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