Comments on: Logic bug in php 5.3

By: Denis

Denis — Mon, 21 Dec 2009 14:01:14 +0000

If only it were the only such ticket, lol. :-D

By: miqrogroove

miqrogroove — Mon, 21 Dec 2009 13:52:58 +0000

This is why you have to kick and scream in situations like Ticket #7748. Data types are twice as important in languages that don't enforce them.

By: Denis

Denis — Fri, 11 Dec 2009 20:01:12 +0000

Adding to the previous comment, and further adding to the confusion, php has this obnoxious feature:

var_dump(" == '0'); // true, because both are empty
var_dump(" === '0'); // false

By: Denis

Denis — Fri, 11 Dec 2009 18:23:37 +0000

You're totally right, yeah. Further investigation revealed it wasn't new at all.

What had confused me into thinking it was, is that I had never run into the issue before, and there is an implicit string to number conversion when comparing numerical strings:

var_dump(0 == '0'); // true
var_dump(1 == '1'); // true
var_dump(1 == '2'); // false

You learn stuff everyday, as they say. Even when you're a php junkie. :-D

By: Malte

Malte — Fri, 11 Dec 2009 15:12:44 +0000

You're shure that this is new to PHP 5.3?