Jquery獲取同名input的值的最好方式

function getValue(){
  var idList='';
  idList=$('input[name="idList"').map(function(){ return $(this).val(); }).get();
  alert(idList);
}

後臺批量update數據

public function saveSort(){
        $rs=array();
        $rs['status']=-1;
        $idList=I('idList');
        for ($i=0; $idList[$i]; $i++) { 
            $sort[]=$i+1;
        }
        $ids=implode(',',I('idList'));
        // $sort=implode(',',$sort);
        $sql = "UPDATE sm_company SET pic_sort = CASE com_id "; 
        $num=0;
        foreach ($sort as $key => $value) { 
            $sql .= sprintf("WHEN %d THEN %d ", $idList[$num], $value); 
            $num++;
        } 
        $sql .= "END WHERE com_id IN ($ids)"; 
        // echo $sql;
        $rd=M()->execute($sql);
        if($rd) $rs['status']=1;
        $this->ajaxReturn($rs);
}