我有一个包含一堆数据的集合。我正在尝试执行以下操作获取前18个结果并吐出使用循环获取特定位置的前 3 个结果并吐出每个结果这是我正在尝试做的示例代码:$data = DataChampion::query() ->selectRaw(' static_champions.name as champion_name, static_champions.slug as champion_slug, static_champions.image as champion_image, static_lanes.slug as lane_slug, static_tiers.slug as tier_slug, static_patches.slug as patch_slug, ((sum(data_champions.wins) / sum(data_champions.matches)) * 100) as win_rate ') ->leftJoin('static_champions', 'static_champions.id', 'data_champions.static_champion_id') ->leftJoin('static_lanes', 'static_lanes.id', 'data_champions.static_lane_id') ->leftJoin('static_tiers', 'static_tiers.id', 'data_champions.static_tier_id') ->leftJoin('static_patches', 'static_patches.id', 'data_champions.static_patch_id') ->where('data_champions.static_patch_id', StaticPatch::orderByDesc('id')->first()->id) ->groupBy('data_champions.static_champion_id') ->orderByDesc('win_rate') ->get();foreach ($data->splice(0, 18) as $data) { echo $data->champion_name . '<br>';}foreach (['top', 'middle', 'bottom'] as $lane_slug) { foreach ($data->where('lane_slug', $lane_slug)->splice(0, 3) as $data) { echo $lane_slug . ' - ' . $data->champion_name . '<br>'; }}我不断收到错误:调用未定义的方法 Illuminate\Database\Eloquent\Builder::splice()当我删除foreach (['top', 'middle'...整个循环时,它似乎适用于前 18 个结果。如何从单个集合中获取我想要的数据,这样我就不必对相同的数据使用多个查询?
2 回答
米脂
TA贡献1836条经验 获得超3个赞
更改如下几行 - 在迭代集合(即 $data)时不能使用相同的变量名。
foreach ($data->splice(0, 18) as $val) {
echo $val->champion_name . '<br>';
}
foreach (['top', 'middle', 'bottom'] as $lane_slug) {
foreach ($data->where('lane_slug', $lane_slug)->splice(0, 3) as $val) {
echo $lane_slug . ' - ' . $val->champion_name . '<br>';
}
}
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