/**
* Notes: 根据某一个字段分组二维
* User: Sen
* DateTime: 2020/7/8 14:16
* Return: {dataArr:需要分组的数据;keyStr:分组依据}
*/
public function dataGroup($dataArr, $keyStr)
{
$newArr = [];
foreach ($dataArr as $k => $val) { //数据根据日期分组
$newArr[$val[$keyStr]][] = $val;
}
return $newArr;
}
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