jQuery UI library provides different types of user interface widgets that are easy to implement on the page. One of the powerful widget is autocomplete.

Autocomplete simplifies user interaction by presenting a list of suggestions as users type into an input field. You can choose to pre-load this suggestion data on the client side during initialization or fetch it dynamically using AJAX.

In this tutorial, I show how you can add jQuery UI Autocomplete in CakePHP 4 and load MySQL database data using jQuery AJAX.

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Dynamic-dependent dropdowns are very helpful to restrict user selection. You may have already seen this on the registration or profile page of the website where you need to select country, state, and city. Options in the dropdown update every time when a country or state dropdown selection gets changed.

If your tables are properly interlinked in the database and want to list their data on the dropdown then you can make them dynamically dependent on one another and load their data using AJAX.

In this tutorial, I show how you can auto populate dropdown using jQuery AJAX with MySQL database data in CakePHP 4.

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