Bug #12453 Updated: comparing 0==null is true?
| From: | joey@php.net | Date: | Wed, 01 Aug 2001 07:59:42 +0000 |
| Subject: | Bug #12453 Updated: comparing 0==null is true? | ||
| References: | 1 | Groups: | php.dev |
| Request: | Send a blank email to php-dev+get-61720@lists.php.net to get a copy of this message | ||
ID: 12453
Updated by: joey
Reported By: btanner@home.com
Old Status: Open
Status: Bogus
Bug Type: Scripting Engine problem
Operating System: Win2k
PHP Version: 4.0.6
New Comment:
This is not a bug.
This is correct behavior.
For future reference, please try the following before reporting a bug:
http://www.php.net/bugs-dos-and-donts.php
For more info:
http://php.net/manual/en/language.operators.comparison.php
http://php.net/manual/en/language.types.string.php#language.types.string.conversion
Previous Comments:
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[2001-07-31 08:40:35] andy@php.net
i thought that any integer =0 was also equal to any string...
for example (in your script):
$MyVar=0;
if ($MyVar=="blahblahblahblah")
echo "yes";
else
echo "no";
will echo "yes"
I don't know if this is supposed to happen, but it does.
If you set the $MyVar=1, the script prints no.
Can anybody else verify if this is supposed to happen, or
if this is actually a bug?
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[2001-07-28 22:54:40] btanner@home.com
If you compare the integer(0) to the string "null", PHP thinks they are the same.
Am I hopped up on goofballs, or whats up here?
$MyVar=0;
if($MyVar=="null")
print("apparently $MyVar is equal to \"null\"");
else
print("its not null, its $MyValue");
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Edit this bug report at http://bugs.php.net/?id=12453&edit=1