PHP Variables

[Jason2k1]

I use php variables passed from page to page by the query string at the end of the url. does anyone know of the code that will declare a default value to a variable if one is not present in the query string?

Thanks in Advance

Jason

 

[Zedric]

The default value will be 0, "" or false depending on use. Using non-existant variables in PHP is not a problem.

The only thing might be if PHP is set to print out notices. Make sure the error reporting line in php.ini looks like:
error_reporting = E_ALL & ~E_NOTICE

Or you could do:

if(!isset($varname)){
     $varname = 0      // Or whatever you want to initialize with.
}

 

[Khayman]

Can also do somethin like

$var= $_GET["urlstring"];
if (isset($var) ==0) /*i.e. if no value in $var*/
{
	$var= 1; /*then set it to 1 (or whatever default)*/
}