Sams Teach Yourself PHP, MySQL® and Apache All in One

Creating a Calendar Library

Because dates are ubiquitous in Web interfaces, and because working with dates is often comparatively complicated, let's look at creating a class library to automate some of the work that dates can present. Along the way, we will revisit some of the techniques we have already covered.

The simple date_pulldown library created in this instance will consist of three separate select elements: one for day of the month, one for month, and one for year. When a user submits a page, the script checks the form input. If there is a problem with the input, we will refresh the page with the user's input still in place. This is very easy to accomplish with text boxes, but is more of a chore with pull-down menus. Pages that display ...