[thelist] is_null php

[Chris W. Parker]

Tom Dell'Aringa <mailto:pixelmech at yahoo.com>
    on Tuesday, July 29, 2003 4:51 PM said:

> Not sure and I cannot find the scriptlet on how you check (isn't is a
> server variable?) anyway I'm pretty sure its the latest.

php_info() i think?

> Regardless - is my code correct? If not what is the correct way to
> deal with that?

Looks ok. But that doesn't mean the variable actually contains a null
value. Try setting it to NULL before you do perfomr the if().

$var = NULL;

if(is_null($var))
{
	echo "yo adrian! i'm NULL!";
}
else
{
	echo "couldn't think of anything funny to put here";
}

That will help you determine if you're at least using it correctly.

Chris.