Description:
------------
In some cases, an apparently valid numeric literal is being detected as an invalid numeric literal.

This is a regression since php5.4 - http://3v4l.org/MmCot

It can be fixed by changing the array to:

1, 3, 5, 7, 8, 10, 12

However, I believe this is possibly unintended behaviour (is there any reason not to accept prefixed zeros?)

Test script:
---------------
<?php

class Test
{
    protected static $months_31 = array( 01, 03, 05, 07, 08, 10, 12 );
}

?>

Expected result:
----------------
No output - I would expect these numeric literals to parse without incident.

Actual result:
--------------
Parse error: Invalid numeric literal in /test.php on line 5