dynamically set global variable

[nnichols]

I want to create a function that checks to see if the parameter passed to it is a registered post_var, and if so, to write it to a global variable of the same name. This is so that I can over-write sess_vars with specified post_vars. I can do it using -

if($POST['name'])
$name = $POST['name'];

but because I need to do it quite often it would be nice to encapsulate it in a function. Something like this, but I don't know how to get it to work.

function check_postvar($input)
{
if($POST['$input'])
{
$input2 = "\$" . $input;
global '$input2';
'$input2' = $POST['$input'];
}
}

Thanks in advance

[dannys]

Try this:

function checkPostVar($input)
{

if(isset($_POST[$input]))
{
	global $$input;
	$$input = $_POST[$input];

	return true;
}

return false;

}

Also, take a look at the Variable-Variables article on this site.

HTH

[nnichols]

thanx