Question

我想缓存查询并将结果作为关联数组。当我这样做而没有这样的缓存时，它没关系：

class ItemRepositoryEloquent {

    public function getItems() {

        $items= Item::lists('word','key');

        return $items->toArray();

    }

}

但是当我尝试像这样缓存我的查询时：

class ItemRepositoryEloquent {

    public function getItems() {

        $items = Cache::remember('items', 1440, function(){
            return Item::lists('word','key');
        });

        return $items->toArray();

    }

}

它会返回如下结果：

[
    0 => array('key' => 'word')
    1 => array('key' => 'word')
    2 => array('key' => 'word')
    3 => array('key' => 'word')
    4 => array('key' => 'word')
    5 => array('key' => 'word')
]

但我希望缓存后结果如下：

[
    'key' => 'word',
    'key' => 'word',
    'key' => 'word',
    'key' => 'word',
    'key' => 'word'
]

提前致谢。

Answer 1

你应该能够通过使用collapse方法得到你想要的结果，不知道什么记得默认返回，但这是一个使用原始数组的例子

$collection = collect([                                                                                                                                                 
    0 => array('key1' => 'word'),                                                                                                                                           
    1 => array('key2' => 'word'),                                                                                                                                           
    2 => array('key3' => 'word'),                                                                                                                                           
    3 => array('key4' => 'word'),                                                                                                                                           
    4 => array('key5' => 'word'),                                                                                                                                           
    5 => array('key6' => 'word'),                                                                                                                                       
]);

然后你可以做

$collection->collapse()->toArray();

会给你

[
     "key1" => "word",
     "key2" => "word",
     "key3" => "word",
     "key4" => "word",
     "key5" => "word",
     "key6" => "word",
]

Laravel 5缓存查询 - 将结果作为关联数组

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