PHP: Gzip compression made easy

June 28 2011 by Ryan Carter in performance, PHP, random thoughts |No Comments

If you want to speed up your php pages with minimal trouble and maximum results, do this:
Source: [Webcodingtech]

Put this code in your main header or template file, before EVERYTHING, even doctype.

<?php
function print_gzipped_page() {
 
    global $HTTP_ACCEPT_ENCODING;
    if( headers_sent() ){
        $encoding = false;
    }elseif( strpos($HTTP_ACCEPT_ENCODING, 'x-gzip') !== false ){
        $encoding = 'x-gzip';
    }elseif( strpos($HTTP_ACCEPT_ENCODING,'gzip') !== false ){
        $encoding = 'gzip';
    }else{
        $encoding = false;
    }
 
    if( $encoding ){
        $contents = ob_get_contents();
        ob_end_clean();
        header('Content-Encoding: '.$encoding);
        print("\x1f\x8b\x08\x00\x00\x00\x00\x00");
        $size = strlen($contents);
        $contents = gzcompress($contents, 9);
        $contents = substr($contents, 0, $size);
        print($contents);
        exit();
    }else{
        ob_end_flush();
        exit();
    }
}
 
ob_start();
ob_implicit_flush(0);
?>

Then put this after everything, at the very end of your page.

<?php print_gzipped_page(); ?>

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