Description:
------------
Hello,
i don't understand filter on octal and hexa. Why input_get return one error on '-01' or '-0xF' in $_GET|POST ?

Here: http://www.php.net/manual/en/language.types.integer.php
decimal     : [1-9][0-9]*
            | 0

hexadecimal : 0[xX][0-9a-fA-F]+

octal       : 0[0-7]+

integer     : [+-]?decimal
            | [+-]?hexadecimal
            | [+-]?octal

With octal value, it's not possible to send '00', why ?

logical_filters.c
/* state 0 */
if (*p == '-' || *p == '+') {
  ctx_multiply = *p == '-' ? -1 : 1; p++; goto stateI1; <<<=== Why not continue to Octal or Hexa goto ?
} else {
  goto stateOH1;
}

Thank you for your work.


Expected result:
----------------
I expect negatives values for negatives input.
I expect a value equal at 0 for octal value 00.

Actual result:
--------------
$source = INPUT_GET;
$name = 'foo';

$ret = input_get($source, $name, array('flags' => Filter::FILTER_FLAG_ALLOW_OCTAL));

echo '$ret = '; echo $ret;