PHP二维数组追加修改二维数组数据

1.foreach循环追加修改

foreach ($res as $k => $v) {
    $res[$k]['time'] = date('Y-M-D',$v['time']);
}

2.循环引用追加修改

foreach ($res as $k => &$v) {
    $v['time'] = date('Y-M-D',$v['time']);
}

3.使用array_walk追加修改

array_walk($res,function (&$v) {
$v['time'] = date('Y-M-D',$v['time']);//方式1
$v = array_merge($v,['time'=>date('Y-M-D',$v['time'])]);//方式二
});