Ajax获取php返回json数据动态生成select下拉框的实例_AJAX相关_

层次本科高职（专科）专业--

 $("#level").click(function(){ $.ajax({ type:"POST", url:"{:U('Target/queryMajor')}", dataType: "json", data:{ level:$('#level').val() }, success:function(data){ $("#major").empty(); switch (data.status){ case '1': $("#major").append("--"); $.each(data.data,function(index,val){ $("#major").append(''+val.major+''); }); break; case '0': $("#major").append("--"); break; } return false; } }); return false; });

 public function queryMajor() { if(I('post.level') == 1){$ccmc = '本科';}else{$ccmc = '高职（专科）';} $dao = M('Plan'); $condition["ccmc"] = $ccmc; $record = $dao->where($condition)->field('major')->select(); if($record != null){ $this->ajaxReturn($record,'','1'); }else{ $this->ajaxReturn('','','0'); } }