#20931 [Com]: is_null ceases to function

ID: 20931 Comment by: gregaryh@juno.com Reported By: gregaryh@juno.com 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: ------------------------------------------------------------------------ [2002-12-11 01:10:33] sniper@php.net 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. $_POST['somevar'] is definately not NULL.. ------------------------------------------------------------------------ [2002-12-11 01:07:07] gregaryh@juno.com I recently compiled php 4.2.3 on my debian system under apache 2.0. I then uploaded a site that was developed on another machine running apache 1.3 and php 4.2.1. While testing the site i noticed something seemed wrong. Upon further investigation i found that the is_null function, which was working perfectly on the other system, seemed to be malfunctioning. for example: if (is_null($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' ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=20931&edit=1