Description:
------------
In the PHP Manual it is said that:
"$a === $b      Identical       TRUE if $a is equal to $b, and they are of the 
same type. (introduced in PHP 4)"
But when I test like that:

<?php
$A=4;
$B = '4' - '0';
echo '$A === $B ';
echo $A === $B?"true":"false";
//Out put $A === $B true
?>

I think $A and $B do not have same type, but there are in same values.

Is that a bugs?

I need help with this.

Test script:
---------------
<?php
$A=4;
$B = '4' - '0';
echo '$A === $B ';
echo $A === $B?"true":"false";
//Out put $A === $B true
?>

Expected result:
----------------
$A === $B true