James Gadrow wrote:
OKi98 wrote:
Hi,
one more question.
Why the variable, that contains NULL value appears to be not set. When
you try to echo it the php does not produce warning about using
undefined variable.
//$connection contains database connection handler
$result=mysql_query("select NULL as value",$connection);
$tmp=mysql_fetch_array($result);
$foo=$tmp["value"];
if (!isset($foo)) echo("\$foo is not set but does not produce warning
-$foo-");
OKi98
Someone correct me if I'm wrong but it appears that you should be using
if(!isset($tmp["value"]) before assigning to $foo if you want to ensure
that $foo will, indeed, be set.
Yeh - you need to check before you do the assignment.
--
Postgresql & php tutorials
http://www.designmagick.com/
--
PHP Database Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
