ID:               20931
 Comment by:       [EMAIL PROTECTED]
 Reported By:      [EMAIL PROTECTED]
 Status:           Bogus
 Bug Type:         Variables related
 Operating System: debian linux
 PHP Version:      4.2.3
 New Comment:

why would this exact code work in php ver. 4.2.1 but not in ver 4.2.3
if it is not a bug?


Previous Comments:
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[2002-12-11 01:10:33] [EMAIL PROTECTED]

Sorry, but your problem does not imply a bug in PHP itself.  For a
list of more appropriate places to ask for help using PHP, please
visit http://www.php.net/support.php as this bug system is not the
appropriate forum for asking support questions. 

Thank you for your interest in PHP.

$_POST['somevar'] is definately not NULL..


------------------------------------------------------------------------

[2002-12-11 01:07:07] [EMAIL PROTECTED]

I recently compiled php 4.2.3 on my debian system under apache 2.0. I
then uploaded a site that was developed on another machine running
apache 1.3 and php 4.2.1. While testing the site i noticed something
seemed wrong. Upon further investigation i found that the is_null
function, which was working perfectly on the other system, seemed to be
malfunctioning.

for example:
if (is_null($somevar)){
   execute code A
}

code A would execute regardless of whether $somevar had a null value or
not

if i do the following:
echo is_null($somevar) 
nothing was echoed to the screen, again regardless of the value of
$somevar

if i did the following however with $somevar set to null:
if($somevar == null){
   execute code A
   if(is_null($somevar)){
      execute code b
   }
}

code A will execute but code B will not. 

the value of somevar is assigned by an html form sent using the POST
method as this example illustrates:

$somevar = $_POST['$formvar'];

the purpose of the code is to check if a field was left blank.
This code worked fine on the original server but failed to work when
copied to the new server

my configuration is as follows:
./configure' '--prefix=/usr/local/apache2/php'
'--with-apxs2=/usr/local/apache2/bin/apxs'
'--with-config-file-path=/etc' '--with-mysql'



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