String with NULL-byte passback from JS to PHP fails

[stesie]

<?php

$v8js = new V8Js();

$foo = $v8js->executeString("String.fromCharCode(65)");
var_dump($foo);

$foo = $v8js->executeString("String.fromCharCode(0)");
var_dump($foo);

Since both JS and PHP can handle strings with NULL-bytes I would expect even the latter to return a string of one byte length, ... well but:

string(1) "A"
string(0) ""

[rosmo]

This should fix this issue: rosmo@3b6390b