0 = "hello world"

[Anon]

Hi ,

Can someone tell me why a variable with a value of zero will always equal a variable with a string value.

$t1=0;
$t2="hello"
eg if ($t1==$t2) is always true

[Anon]

i havent the foggiest idea, although i must admit that is one of the weirdest things i have seen recently...

[jjoske]

That is pretty strange. Could it have something PHP trying to covert the to variables to the same kind, and converting the string to an interger with the value of 0?

[nashirak]

You are exactly right John. Apparently PHP casts a string into the 0 value for an int. Try this code and see for yourself :

<?php
$t1=0;
$t2="comealskda;slkd";

$t2 = (int)$t2;

echo $t2;

if ($t2==$t1)
echo "true";
else
echo "false";
?>

$t2 can be any string. No matter what the value of t2 when cast manually to an int is zero. Interesting!!! 🙂