is_null

[JakeWilliams]

I'm using php v4.2.4
The php manual says any version >= 4.0.4 should support the function is_null, but my version is not recognizing it. Is there something I have to do to get this function operational?

Thanks,
Jake

[Joan Garnet]

It appears to be a normal function...
http://www.php.net/manual/en/function.is-null.php
Why don't you post a little piece of code just in case...
bye!

[JakeWilliams]

My main indication is the function is_null() does not highlight in blue as do other functions. I am using Dreamweaver MX.

Code: Select all

if (is_null($row_listContract['address_line_1'])) {
  echo "It is null.";
} else {
  echo "It is not null."
}

'address_line_1' is a database field that I've confirmed is null on the table. I am always getting the result 'It is not null'.

[Joan Garnet]

Well, the variable is empyt, but it actually exists as soon as the column was created.
Better use this:

Code: Select all

if ($row_listContract['address_line_1'] = "") {
  echo "It is null.";
} else {
  echo "It is not null."
}


bye!
;)