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I'm trying to put together a function that receives a file path, identifies what it is, sets the appropriate headers, and serves it just like Apache would. The reason I am doing this is because I need to use PHP to process some information about the request before serving the file. Speed is critical virtual() isn't an option Must work in a shared hosting environment where the user has no control of the web server (Apache/nginx, etc) Here's what I've got so far: File::output($path); <?php class File { static function output($path) { // Check if the file exists if(!File::exists($path)) { header('HTTP/1.0 404 Not Found'); exit(); } // Set the content-type header header('Content-Type: '.File::mimeType($path)); // Handle caching $fileModificationTime = gmdate('D, d M Y H:i:s', File::modificationTime($path)).' GMT'; $headers = getallheaders(); if(isset($headers['If-Modified-Since']) && $headers['If-Modified-Since'] == $fileModificationTime) { header('HTTP/1.1 304 Not Modified'); exit(); } header('Last-Modified: '.$fileModificationTime); // Read the file readfile($path); exit(); } static function mimeType($path) { preg_match("|\.([a-z0-9]{2,4})$|i", $path, $fileSuffix); switch(strtolower($fileSuffix[1])) { case 'js' : return 'application/x-javascript'; case 'json' : return 'application/json'; case 'jpg' : case 'jpeg' : case 'jpe' : return 'image/jpg'; case 'png' : case 'gif' : case 'bmp' : case 'tiff' : return 'image/'.strtolower($fileSuffix[1]); case 'css' : return 'text/css'; case 'xml' : return 'application/xml'; case 'doc' : case 'docx' : return 'application/msword

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