php排除有某同一特征的数据
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问题描述
问 题
想用foreach来获取gid, 得到以下的数据:gid 相同,
有什么办法排除同样的gid,一样的gid,只留一组.
[
{
"id": "151",
"uid": "101497",
"gid": "399",
"create_time": "1462445116",
"msg": null,
"number": "148",
"order_id": "2016050518451705537",
"type": "0",
"prepay_id": null,
"code": null,
"recharge": "0",
"wid": "0",
"end_time": "1462445416",
"status": "1"
},
{
"id": "132",
"uid": "101497",
"gid": "399",
"create_time": "1462420981",
"msg": null,
"number": "97",
"order_id": "2016050512030120339",
"type": "0",
"prepay_id": null,
"code": null,
"recharge": "0",
"wid": "0",
"end_time": "1462421281",
"status": "1"
},
{
"id": "133",
"uid": "101497",
"gid": "399",
"create_time": "1462426436",
"msg": null,
"number": "97",
"order_id": "2016050513335645342",
"type": "0",
"prepay_id": null,
"code": null,
"recharge": "0",
"wid": "0",
"end_time": "1462426736",
"status": "1"
}
]
解决方案
$str='[
{
"id": "151",
"uid": "101497",
"gid": "399",
"create_time": "1462445116",
"msg": null,
"number": "148",
"order_id": "2016050518451705537",
"type": "0",
"prepay_id": null,
"code": null,
"recharge": "0",
"wid": "0",
"end_time": "1462445416",
"status": "1"
},
{
"id": "132",
"uid": "101497",
"gid": "399",
"create_time": "1462420981",
"msg": null,
"number": "97",
"order_id": "2016050512030120339",
"type": "0",
"prepay_id": null,
"code": null,
"recharge": "0",
"wid": "0",
"end_time": "1462421281",
"status": "1"
},
{
"id": "133",
"uid": "101497",
"gid": "398",
"create_time": "1462426436",
"msg": null,
"number": "97",
"order_id": "2016050513335645342",
"type": "0",
"prepay_id": null,
"code": null,
"recharge": "0",
"wid": "0",
"end_time": "1462426736",
"status": "1"
}
]';
$arr = json_decode($str,1);
$res = [];
foreach($arr as $v){
if (!isset($res[$v['gid']])){
$res[$v['gid']] = $v;
}
}
echo '<pre>';print_r(array_values($res));
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