Gzip вывод CSS, JS

вот хотел предложить вывод CSS, JS посредством сжатия GZIP

template_css.php:
<?php
@error_reporting(0);
require_once("/home/penzin/public_html/honda24/templates/honda24/zip.php");

initGzip_quik();
header('Content-Type: text/css; charset: UTF-8');
header('Cache-Control: must-revalidate');

$expire_offset = 0; // set to a reaonable interval, say 3600 (1 hr)
header('Expires: ' . gmdate('D, d M Y H:i:s', time() + $expire_offset) . ' GMT');

function css_compress($buffer) {
$buffer = preg_replace('!/\*[^*]*\*+([^/][^*]*\*+)*/!', '', $buffer);// remove comments
$buffer = str_replace(array("\r\n", "\r", "\n", "\t", ' '), '', $buffer);// remove tabs, spaces, newlines, etc.
$buffer = str_replace('{ ', '{', $buffer);// remove unnecessary spaces.
$buffer = str_replace(' }', '}', $buffer);
$buffer = str_replace('; ', ';', $buffer);
$buffer = str_replace(', ', ',', $buffer);
$buffer = str_replace(' {', '{', $buffer);
$buffer = str_replace('} ', '}', $buffer);
$buffer = str_replace(': ', ':', $buffer);
$buffer = str_replace(' ,', ',', $buffer);
$buffer = str_replace(' ;', ';', $buffer);
$buffer = str_replace(';}', '}', $buffer);
return $buffer;
}

function dump_css_cache($filename) {
$cwd = getcwd() . DIRECTORY_SEPARATOR;

$stat = stat($filename);
$current_cache = $cwd . '_optimize_' . $filename;

// the cache exists - just dump it
if (is_file($current_cache)) {
include($current_cache);
return;
}

// remove any old, lingering caches for this file
if ($dead_files = glob($cwd . '_optimize_' . $filename, GLOB_NOESCAPE))
foreach ($dead_files as $dead_file)
unlink($dead_file);

if (!function_exists('file_put_contents')) {
function file_put_contents($filename, $contents) {
$handle = fopen($filename, 'w');
fwrite($handle, $contents);
fclose($handle);
}
}

$cache_contents = css_compress(file_get_contents($filename));
file_put_contents($current_cache, $cache_contents);
echo $cache_contents;
}

dump_css_cache('template_css.css');
doGzip_quik();
?>

zip.php:
<?
/**
* Initialise GZIP
*/
function initGzip_quik() {
global $mosConfig_gzip, $do_gzip_compress;

$do_gzip_compress = FALSE;
$phpver = phpversion();
$useragent = $_SERVER['HTTP_USER_AGENT'];
$canZip = $_SERVER['HTTP_ACCEPT_ENCODING'];

      $gzip_check    = 0;
      $zlib_check    = 0;
      $gz_check      = 0;
      $zlibO_check   = 0;
      $sid_check      = 0;
      if ( strpos( $canZip, 'gzip' ) !== false) {
         $gzip_check = 1;
      }
      if ( extension_loaded( 'zlib' ) ) {
         $zlib_check = 1;
      }
      if ( function_exists('ob_gzhandler') ) {
         $gz_check = 1;
      }
      if ( ini_get('zlib.output_compression') ) {
         $zlibO_check = 1;
      }
      if ( ini_get('session.use_trans_sid') ) {
         $sid_check = 1;
      }

      if ( $phpver >= '4.0.4pl1' && ( strpos($useragent,'compatible') !== false || strpos($useragent,'Gecko')   !== false ) ) {
         // Check for gzip header or northon internet securities or session.use_trans_sid
         if ( ( $gzip_check || isset( $_SERVER['---------------']) ) && $zlib_check && $gz_check && !$zlibO_check && !$sid_check ) {
// You cannot specify additional output handlers if
// zlib.output_compression is activated here
            ob_start( 'ob_gzhandler' );
return;
}
} else if ( $phpver > '4.0' ) {
         if ( $gzip_check ) {
            if ( $zlib_check ) {
$do_gzip_compress = TRUE;
ob_start();
ob_implicit_flush(0);

header( 'Content-Encoding: gzip' );
return;
}
}
}

ob_start();
}

/**
* Perform GZIP
*/
function doGzip_quik() {
global $do_gzip_compress;
if ( $do_gzip_compress ) {
/**
*Borrowed from php.net!
*/
$gzip_contents = ob_get_contents();
ob_end_clean();

$gzip_size = strlen($gzip_contents);
$gzip_crc = crc32($gzip_contents);

$gzip_contents = gzcompress($gzip_contents, 9);
$gzip_contents = substr($gzip_contents, 0, strlen($gzip_contents) - 4);

echo "\x1f\x8b\x08\x00\x00\x00\x00\x00";
echo $gzip_contents;
echo pack('V', $gzip_crc);
echo pack('V', $gzip_size);
} else {
ob_end_flush();
}
}
?>

генерируется _optimize_template_css.css на тут случай если бруизер не поддерживает CSS как PHP (Firefox)
можно сначала вызвать template_css.php
а потом использовать _optimize_template_css.css

	Автор	Тема: Gzip вывод CSS, JS (Прочитано 1452 раз)
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