Created
February 24, 2011 17:07
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Combines recursively js files into a single one to speed up page loads
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//js.php | |
require 'jsmin.php'; | |
function checkCanGzip(){ | |
if (array_key_exists('HTTP_ACCEPT_ENCODING', $_SERVER)) { | |
if (strpos($_SERVER['HTTP_ACCEPT_ENCODING'], 'gzip') !== false) return "gzip"; | |
if (strpos($_SERVER['HTTP_ACCEPT_ENCODING'], 'x-gzip') !== false) return "x-gzip"; | |
} | |
return false; | |
} | |
function gzDocOut($contents, $level=6){ | |
$return = array(); | |
$return[] = "\x1f\x8b\x08\x00\x00\x00\x00\x00"; | |
$size = strlen($contents); | |
$crc = crc32($contents); | |
$contents = gzcompress($contents,$level); | |
$contents = substr($contents, 0, strlen($contents) - 4); | |
$return[] = $contents; | |
$return[] = pack('V',$crc); | |
$return[] = pack('V',$size); | |
return implode(null, $return); | |
} | |
$ite = new RecursiveDirectoryIterator(dirname(__FILE__)); | |
foreach(new RecursiveIteratorIterator($ite) as $file => $fileInfo) { | |
$extension = strtolower(pathinfo($file, PATHINFO_EXTENSION)); | |
if ($extension == 'js') { | |
$f = $fileInfo->openFile('r'); | |
$fdata = ""; | |
while ( ! $f->eof()) { | |
$fdata .= $f->fgets(); | |
} | |
$buffer[] = $fdata; | |
} | |
} | |
$output = JSMin::minify(implode(";\n", $buffer)); | |
header("Content-type: application/x-javascript; charset: UTF-8"); | |
$forceGz = filter_input(INPUT_GET, 'gz', FILTER_SANITIZE_STRING); | |
$forcePlain = filter_input(INPUT_GET, 'plain', FILTER_SANITIZE_STRING); | |
$encoding = checkCanGzip(); | |
if ($forceGz) { | |
header("Content-Encoding: {$encoding}"); | |
echo gzDocOut($output); | |
} elseif ($forcePlain) { | |
echo $output; | |
} else { | |
if ($encoding){ | |
header("Content-Encoding: {$encoding}"); | |
echo GzDocOut($output); | |
} else { | |
echo $output; | |
} | |
} |
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