/** * override print_r * @author wjh 2014-7-1 * @param $expression * @param null $return */ public static function print_r($expression, $expression2 = null, $expression3 = null, $expression4 = null, $expression5 = null, $expression6 = null, $expression7 = null, $return = null) { DataHelper::addPreStart(); print_r($expression, $return); if (!empty($expression2)) { print_r($expression2); } if (!empty($expression3)) { print_r($expression3); } if (!empty($expression4)) { print_r($expression4); } if (!empty($expression5)) { print_r($expression5); } if (!empty($expression6)) { print_r($expression6); } if (!empty($expression7)) { print_r($expression7); } DataHelper::addPreEdn(); }