note 40818 deleted from language.control-structures by aidan

Note Submitter: Steve at SJHanna dot com ---- A bit of advice about using == in if statements: Instead of if ($a == 0 ) ... write if (0 == $a) ... Clearly, the order doesn't matter. However, if you inadventently were to write if ($a = 0) // Note the assignment! your test would always return false! That's because you've assigned the value 0 to $a, then tested that value, and 0 is false. On the other hand, if you wrote if (0 = $a) ... the processor will give you an error, since you can't assign a value to a constant.