Error when parsing octal notation

[y0no]

Hi,
Thank you for this great project! I use it to deobfuscate some PHP code. I have recently tried with a valid PHP code that cannot be parsed by phply. Here is the code:

<?php

function foo($value) {
    echo $value;
}

foo(0987654321);

It seems that when an invalid octal variablle is passed to PHP, is value is modified to 0. Things that phply does not handle.

[y0no]

Here is the pull request: #22

[viraptor]

Thanks for the patch @y0no !
It seems that new versions of php (>=7) turn invalid octal numbers into a syntax error, so there's no good way to seamlessly support both "correct" behaviours.

One way I see that could potentially fix this is to basically have a v5/v7 switch, but that would essentially require 2 separate parsers. I'd rather support the current version properly.
Alternatively there could be relaxed/strict mode if there are enough edge cases for it.

Have you got a preferred approach or other ideas?

[Alexey-T]

Better add global var (in the phply module) like PHPLY_PHP_VERSION which can be 'Pre7', '7+' etc.