Syntax error: $this when not in object

[lmedina3]

$paypal_item = $sitename." Service Monthly Subscription";
	$paypal_item_number = $sitename;
	$mainipn = $siteurl."/ipn.php";
	$paypal_ipn = $siteurl."/site_ipn.php";
	$paypal_cancel_return = $siteurl."/cancel.php";
	$paypal_return = $siteurl."/thanks.php";
	$this->min_pass_length=8;
	$this->max_pass_length=12;
	$this->chars='abcdefghijklmnopqrstuvwxyz0123456789';

something is wrong with $this->min_pass_lengt h, but I'm a newbin and can't figure it out. How can I fix this?

[Dormilich]

the special variable $this only works when used in an object context, i.e. inside an object’s method.