Description:
------------
When you try to compare an empty string with any number who begins with 09 or 08 (booth includes) it returns true.

I have it tested on Windows and Linux and it happends

(I'm Sorry for my English, it's very bad,I hope you to understand me)

Mart?n Gonz?lez

Reproduce code:
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$string = false;

if ($string == 09) { echo "Match<br>\n"; }

if ($string == 08) { echo "Match<br>\n"; }

if ($string == 09547856) { echo "Match<br>\n"; }

if ($string == 08625131) { echo "Match<br>\n"; }

/*
It will return:

Match
Match
Match
Match
*/

Expected result:
----------------
Nothing

Actual result:
--------------
Match
Match
Match
Match