html_QuickForm: pass paramaters to callback rule

[pixelterra]

I would like to have a numeric range callback validation rule. But I cannot figure out how to pass the callback function any range parameters. See below for what I am hoping to achieve.

function numeric_range ($val,$range) {
if ($val > $range[0] && $val < $range[1]) {
return true;
} else {
return false;
}
}
$f->addRule('card_exp_month', 'Numeric value between 10 and 25', 'callback', 'numeric_range', array(10,25);

My problem is that the callback func is only passed the $val parameter. I tried to look at the callback.php source to figure out how to send a paramater, but it's pretty dense...

If this can't be done, I'm forced to write custom functions for EVERY range I'll need. This precludes dynamic ranges, obviously : (

The following line from the documentation is enticing however: All other builtin rules will only handle a single element name. callback rules can also handle an array here, but the callback function you provide will obviously need to properly handle an array of values.

It of course leaves how to properly handle an array of values to the reader, naturally. I'm trying hard not to be disappointed by the very sparse user documentation for the pear library. I am new to pear, and had high hopes for it initially. But after 4 months on a project using pear, I'm continually daunted by poor or absent documentation...

[mark]