Updated: 02/26/2001

chainedSelectors: A Better Way to Drop-down a PHP List

Intended for programmers interested in experimenting with complex user interface elements, this tutorial explores using PHP to generate JavaScript based on data in a database. This tutorial explains a class called chainedSelectors. This class helps you create a SELECT form field that automatically updates the value of another SELECT using JavaScript. PHP is used to retrieve the values for the selectors from a MySQL database. This data is then used to create a JavaScript function that''s triggered when the value of the first selector is changed.

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