Welcome to the Cookbook

This rule will ensure that the value is in a valid monetary amount.

Second parameter defines where symbol is located (left/right).

var $validate = array(
    'salary' => array(
        'rule' => array('money', 'left'),
        'message' => 'Please supply a valid monetary amount.'
    )
);

1. var $validate = array(
2. 'salary' => array(
3. 'rule' => array('money', 'left'),
4. 'message' => 'Please supply a valid monetary amount.'
5. )
6. );

View this section in 1.3 cookbook