php解析JSON

直接贴代码，两种方式：

$data = '[{"id":"2801370344505508","order":0},{"id":"2801370745841539","order":1},{"id":"2801370745836594","order":2}]';

方式1

$order = json_decode($data);  //返回对象哦

foreach($order as $k => $v){

print_r($v->id."".$v->order);

}

方式2

$order = json_decode($data,true);  //第二个参数 true，返回的是数组

foreach($order as $k => $v){

$this->db_group->update(array("ord_idx"=>$v[order]),array("id"=>$v[id]));

}