``` /** * 获取星期几 */ function getWeek($date){ //强制转换日期格式 $date_str=date('Y-m-d',strtotime($date)); $number_wk=date("w",strtotime($date)); $weekArr=array("星期日","星期一","星期二","星期三","星期四","星期五","星期六"); return $weekArr[$number_wk]; } ```