PHP script to join multiple javascript files into one file, compress with gzip, set expiration headers

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    script PHP script to join multiple javascript files into one file, compress with gzip, set expiration headers

    Speed Up your sites with the script below.

    Join multiple javascript files into one file, compress them with gzip and set expiration header.

    replace:
    PHP Code:
    include('./js/file1.js');
    include(
    './js/file2.js');
    include(
    './js/file3.js'); 
    with your js files

    PHP Code:
    <?php
    $offset 
    60 60 24 30// Cache for a day
    header("Content-type: text/javascript");
    header ("Cache-Control: max-age=" $offset ", must-revalidate");
    header ("Expires: " gmdate ("D, d M Y H:i:s"time() + $offset) . " GMT");
    function 
    compress($buffer) {
    /* remove comments and empty lines */
    //$buffer = preg_replace('!/\*.*?\*/!s', '', $buffer);
    $buffer preg_replace('(// .+)'''$buffer);
    $buffer str_replace(array("//\r\n""//\n"), ''$buffer);
    $buffer preg_replace('/\n\s*\n/'"\n"$buffer);
    return 
    $buffer;
    }
    ob_start();
    include(
    './js/file1.js');
    include(
    './js/file2.js');
    include(
    './js/file3.js');
    $out ob_get_contents();
    ob_end_clean();
    $out compress($out);
    if(
    strstr($_SERVER["HTTP_ACCEPT_ENCODING"],"gzip"))
    {
    header("Content-Encoding: gzip");
    header("Vary: Accept-Encoding");
    ob_start('ob_gzhandler');
    }
    echo 
    $out;
    ?>
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