%s could not be created, please run following command:
chmod 777 %s
then re-activate plugin.', $path, dirname($path));
if ($die) {
die($error);
}
return $error;
}
/**
* Returns current microtime
*
* @return float
*/
function w3_microtime()
{
list ($usec, $sec) = explode(" ", microtime());
return ((float) $usec + (float) $sec);
}
/**
* Check if URL is valid
*
* @param string $url
* @return boolean
*/
function w3_is_url($url)
{
return preg_match('~^https?://~', $url);
}
/**
* Decodes gzip-encoded string
*
* @param string $data
* @return string
*/
function w3_gzdecode($data)
{
$flags = ord(substr($data, 3, 1));
$headerlen = 10;
$extralen = 0;
if ($flags & 4) {
$extralen = unpack('v', substr($data, 10, 2));
$extralen = $extralen[1];
$headerlen += 2 + $extralen;
}
if ($flags & 8) {
$headerlen = strpos($data, chr(0), $headerlen) + 1;
}
if ($flags & 16) {
$headerlen = strpos($data, chr(0), $headerlen) + 1;
}
if ($flags & 2) {
$headerlen += 2;
}
$unpacked = gzinflate(substr($data, $headerlen));
if ($unpacked === FALSE) {
$unpacked = $data;
}
return $unpacked;
}
/**
* Recursive creates directory
*
* @param string $path
* @param integer $mask
* @return boolean
*/
function w3_mkdir($path, $mask = 0755)
{
$dirs = preg_split('~[\\/]+~', $path);
$curr_path = '';
foreach ($dirs as $dir) {
if (empty($dir)) {
return false;
}
$curr_path .= $dir;
if (! is_dir($curr_path)) {
if (@mkdir($curr_path, $mask)) {
@chmod($curr_path, $mask);
} else {
return false;
}
}
$curr_path .= DIRECTORY_SEPARATOR;
}
return true;
}
/**
* Check if content is HTML or XML
*
* @param string $content
* @return boolean
*/
function w3_is_xml($content)
{
return (stristr($content, '