Right. The equivalency operators check data type, too.

if("1234" == 1234)
   echo "== true\n";
else
   echo "== false\n";

if("1234" === 1234)
    echo "=== true\n";
else
    echo "=== false\n";

Should print:
==true
=== false


Remember, when dealing with boolean expressions, you can't just take strange shortcuts with the expressions. There's no "associative" property like there is in mathematics. That is,

A * (B + C) == (A * B) + (A * C)
    but

A == (B || C) !== (A && B) || (A && C)

You have to be explicit.


Take care,

Nik
http://www.bigaction.org/