What are common issues faced when installing PHP, Xampp, and MySQL together?

One common issue faced when installing PHP, Xampp, and MySQL together is the "MySQL extension is missing" error. This error occurs when the PHP installation does not include the MySQL extension, preventing PHP from connecting to the MySQL database. To solve this issue, you need to enable the MySQL extension in the PHP configuration file (php.ini) by uncommenting the following line: extension=php_mysql.dll

extension=php_mysql.dll