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Asked by Jessy Last Modified
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To create a chat system like Skype using PHP, AJAX, jQuery, and MySQL, start by setting up a MySQL database to store user information and messages. Use PHP for server-side processing, including user authentication and message handling. Create a frontend interface with HTML and CSS, utilizing jQuery and AJAX to send and receive messages asynchronously without reloading the page. Implement real-time updates using AJAX polling or WebSockets for instant message delivery, and ensure proper security measures are in place, such as input validation and data sanitization.
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