public static function guid($mix = '', $len = 32) { if (is_object($mix) && function_exists('spl_object_hash')) { return spl_object_hash($mix); } elseif (is_resource($mix)) { $mix = get_resource_type($mix) . strval($mix); } else { $mix = empty($mix) ? rand::string(32) : $mix; $mix = serialize($mix); } return md5($mix); }
/** * 上传文件 * * @param string $name FILE字段名称 * @param string $path 上传的路径 * @param string $ext 扩展名 * @param boolean $rename 是否重新命名 * @return array */ public static function upload($name, $path, $ext, $rename = true) { if (!dir::exists(dirname($path))) { dir::create(dirname($path)); } $ext = explode(',', $ext); $files = $_FILES[$name]; $attachments = array(); //转换数组 if (is_array($files['name'])) { foreach ($files as $key => $var) { foreach ($var as $id => $val) { $attachments[$id][$key] = $val; } } } else { $attachments[] = $files; } //上传 $return = array(); foreach ($attachments as $k => $file) { if (in_array(self::ext($file['name']), $ext)) { $tmp = $path; if ($rename) { $tmp .= DS . rand::string(10) . self::ext($file['name']); } else { $tmp .= DS . $file['name']; } @move_uploaded_file($file['name'], $tmp); $return[] = $tmp; @unlink($file['tmp_name']); } else { $return[] = false; } } return $return; }