Re: This is happening why?
| From: | tg-php at gryffyndevelopment dot com | Date: | Mon, 06 Jun 2005 19:00:17 +0000 |
| Subject: | Re: This is happening why? | ||
| Groups: | php.general | ||
| Request: | Send a blank email to php-general+get-216509@lists.php.net to get a copy of this message | ||
Yeah.. you're comparing a string, 'NULL' with an integer 0. You're not
comparing NULL with anything, you're comparing a string that contains the word
'NULL'.
You can use === to do an exact comparison without conversion.
echo intval('NULL');
intval('NULL') === 0
= = = Original message = = =
Run this code:
<?
if( 0 == 'NULL' )
echo "'NULL' == 0<br>";
else
echo "'NULL' != 0<br>";
?>
Is this just a case of PHP converting variable types for comparison?
thnx,
Chris
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