note 24493 added to function.is-null
| From: | galardi at dii dot unisi dot it | Date: | Mon, 19 Aug 2002 14:43:08 +0000 |
| Subject: | note 24493 added to function.is-null | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-35195@lists.php.net to get a copy of this message | ||
The following function is useful for set a variable to a default value the case it contains null:
function Nz($TestVar,$ValueIfNull)
{
if (is_null($TestVar))
return $ValueIfNull;
else
return $TestVar;
}
I have used it to ensure to always write something in the cells of a table; otherwise Netscape
doesn't show the color of cell background. Ex:
<TD valign="top" BGCOLOR="#F0F0F0">
<?echo Nz($row2["Name"]," ");?>
</TD>
--
http://www.php.net/manual/en/function.is-null.php
http://master.php.net/manage/user-notes.php?action=edit+24493
http://master.php.net/manage/user-notes.php?action=delete+24493
http://master.php.net/manage/user-notes.php?action=reject+24493