$where = array(
'region_type'=>1,
'parent_id'=>1,
);
$limit = 31;
$data = $this->select($where,'*','','1',$limit);//查询省
foreach($data as $k => $v){
$where2 = array(
'region_type'=>2,
'parent_id'=>$v['region_id'],
);
$da2 = $this->select($where2,'*','','1',$limit);//查询市
foreach($da2 as $k1 => $v1){
$where3 = array(
'region_type'=>3,
'parent_id'=>$v1['region_id'],
);
$da3 = $this->select($where3,'*','','1',$limit);//查询县
$da2[$k1]['sub']= $da3;
}
$data[$k]['sub']= $da2;
}
echo json_encode($data,JSON_UNESCAPED_UNICODE); //依照json数据输出
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