Description:
------------
If you are in a "for" loop you can't modify the itterative variable. PHP seems to revert it the value at the start of the itteration.

This is standard behaviour for both C and Java. The PHP documentation does not forbid this, and the syntax suggests it is possible, so I assume this is a bug and not a design decision.

Reproduce code:
---------------
for ($n = 0; $n < 4; $n++)
{
   print("$n\n");

   if ($n = 2)
      $n = 4;
}

Expected result:
----------------
0
1
2

Actual result:
--------------
0
1
2
3