Cascaded drop down lists or dependent dropdown list are easy to create in PHP using jQuery and ajax. It’s a good idea to filter things and show user what is needed to be displayed. Suppose we have to create a form where we want users to select a cricket player with his country. So what we would do is first ask him to select a country and then in second drop down list he will see only those players name that play for that particular selected country. So the idea is to populate players drop down list based on selected country. In this tutorial we would be doing this using PHP and jQuery.
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