Redirection in PHP can be done using the header() function. To setup, a simple redirect simply creates an index.php file in the directory you wish to redirect from with the following content:
<?php header("Location: http://www.redirect.to.url.com/"); ?>
Where 'http://www.redirect.to.url.com/' is the URL you wish the users to be redirected to. This can also be a file, like so:
<?php header("Location: anotherDirectory/anotherFile.php"); ?>
Files can be of any type, including but not limited to HTML, python, PHP, CGI, Perl, and compiled CGI programs.
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