Whats with this if statement

<?
$tmp1 = 0;
$tmp2 = "all";

if ($tmp1 == $tmp2)
echo "TRUE<br>\n";
else
echo "FLASE<br>\n";
?>

This prints "TRUE" !!!!! whats going on here?

Chris Lee

Does it work with the curlies in it like below?

<?
$tmp1 = 0;
$tmp2 = "all";

if ($tmp1 == $tmp2) {
echo "TRUE\n";
} else {
echo "FLASE\n";
}
?>

Still says true , wierd eh. but it aint true, its false,

0 does not = 'all'

Ive tried it with ' vs " too

Chris Lee

Apparently you need to say:

if ((string)$tmp1 == $tmp2)

though I've never seen PHP not convert appropriately between
string and number before.

It is converting appropriately, it is just converting the "all" to an integer; 0

Duhhh! (Sound of hand hitting forehead.) Of course; all
the it-just-works stuff I've been dealing with has been
comparing things like

if ($value > 1)

where $value contains a digit-string as returned from a
numeric database column. Thanks for clarifying my
confusion!

This has to be the first time Ive had a problem with php type casting in the wrong spot before. I'll fix my code to be fool proof 🙂 thanks all.

Chris Lee

Well, just out of curiousity, what should the result
be of comparing a number and "all"?