From XAMPP home page:
What is XAMPP?
XAMPP is a completely free, easy to install Apache distribution
containing MariaDB, PHP, and Perl. The XAMPP open source package has
been set up to be incredibly easy to install and to use.XAMPP is the most popular PHP development environment
XAMPP comes with PHP already bundled. You don’t need a separate PHP installation
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solved Does XAMPP include PHP?