code = -1;...}" statement can be used to determine whether the data exists."/> code = -1;...}" statement can be used to determine whether the data exists.">
Home >PHP Framework >ThinkPHP >How to query if there is data in thinkphp
thinkphp查询是否有数据的方法:1、打开相应的tp文件;2、通过“M("gkwh_dictdata");”实例化对象;3、使用“if($list_dictdata !== null) {$obj->code = -1;...}”语句判断数据是否存在即可。
本教程操作环境:Windows7系统、ThinkPHP5版、Dell G3电脑。
thinkphp怎么查询是否有数据?
thinkphp mode find()方法查询记录是否存在的方法
代码如下:
//字符过滤 $mode = M("gkwh_dictdata"); // 实例化对象 $where = "data_value = '".trim($_POST["famiMembFana"])."' or data_value = '".trim($_POST["famiMembLana"])."'"; $list_dictdata = $mode->where($where)->find(); //如果记录存在 if($list_dictdata !== null) { $obj->code = -1; $msg = "注册信息有非法字符"; $obj->msg = $msg; $obj->data = $list_dictdata; $obj->count = 0; echo json_encode($obj); die; }
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