<-- .htaccess file located in your parent web host -->
<--  When the url ends with -amp it will be redirected 
     to your PHP file which will contain your amp code. -->
RewriteCond %{REQUEST_URI} ^/[a-z]+-amp$ 
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule .* "amp-version.php" [L] 

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