open($zipFile) === true) { $returnValue = ($zip->getFromName($archiveFile) !== false); $zip->close(); return $returnValue; } else { return false; } } else { // Regular file_exists return file_exists($pFilename); } } /** * Returns canonicalized absolute pathname, also for ZIP archives * * @param string $pFilename * @return string */ public static function realpath($pFilename) { // Returnvalue $returnValue = ''; // Try using realpath() if (file_exists($pFilename)) { $returnValue = realpath($pFilename); } // Found something? if ($returnValue == '' || ($returnValue === null)) { $pathArray = explode('/', $pFilename); while (in_array('..', $pathArray) && $pathArray[0] != '..') { for ($i = 0; $i < count($pathArray); ++$i) { if ($pathArray[$i] == '..' && $i > 0) { unset($pathArray[$i]); unset($pathArray[$i - 1]); break; } } } $returnValue = implode('/', $pathArray); } // Return return $returnValue; } /** * Get the systems temporary directory. * * @return string */ public static function sys_get_temp_dir() { if (self::$useUploadTempDirectory) { // use upload-directory when defined to allow running on environments having very restricted // open_basedir configs if (ini_get('upload_tmp_dir') !== false) { if ($temp = ini_get('upload_tmp_dir')) { if (file_exists($temp)) { return realpath($temp); } } } } // sys_get_temp_dir is only available since PHP 5.2.1 // http://php.net/manual/en/function.sys-get-temp-dir.php#94119 if (!function_exists('sys_get_temp_dir')) { if ($temp = getenv('TMP')) { if ((!empty($temp)) && (file_exists($temp))) { return realpath($temp); } } if ($temp = getenv('TEMP')) { if ((!empty($temp)) && (file_exists($temp))) { return realpath($temp); } } if ($temp = getenv('TMPDIR')) { if ((!empty($temp)) && (file_exists($temp))) { return realpath($temp); } } // trick for creating a file in system's temporary dir // without knowing the path of the system's temporary dir $temp = tempnam(__FILE__, ''); if (file_exists($temp)) { unlink($temp); return realpath(dirname($temp)); } return null; } // use ordinary built-in PHP function // There should be no problem with the 5.2.4 Suhosin realpath() bug, because this line should only // be called if we're running 5.2.1 or earlier return realpath(sys_get_temp_dir()); } }