php - 使用标签执行图像搜索

Question

嗨，我有一个数据库，但似乎无法想出一种技术来搜索我的项目上的图像，我的数据库结构如下所示。

图像表

image_id (PK) |类别 |拇指|预览 |作者

图像标签表

img_id(FK)|标签名称

整个想法是，当用户填写文本框并按 Enter 键时，我的 PHP 脚本使用爆炸函数将请求的值按空格转换为数组，然后在搜索时循环遍历每个找到的值在数据库(图像标签表)上查找具有类似于请求的值的标签名称，并加入图像表，其中 (FK) 等于 (PK)。

我实际上正在寻找一种更有效、更可行的方法来完成我的工作

这是我的代码(php/query)。

   $keywords = Input::get("keywords");

   $keywordsExploded = explode(" ", $keywords);

    for ($i=0; $i < count($keywordsExploded); $i++) { 

        $searchKey = $keywordsExploded[$i];

        $search = DB::table('image_tags')
                    ->leftJoin('images', 'images.image_id', '=', 'img_id')
                    ->where('tag_name','like','%'.$searchKey.'%')
                    ->get();

        $imageResult[] = $search;
    }

    $imageResult = array_map('unserialize', array_unique(array_map('serialize', $imageResult)));

这是我转储变量时的输出。

Array
(
    [0] => Array
        (
            [0] => stdClass Object
                (
                    [img_id] => 8045eb05de1f6b72824f2bfd2fc972c1
                    [tag_name] => Fine girls
                    [image_id] => 8045eb05de1f6b72824f2bfd2fc972c1
                    [category] => Family
                    [license] => Limited Utility (LU)
                    [author] => Daniel Barde
                    [thumb] => assets/downloads/img/thumb/2413759e3bdebf51b8bf215bc82018d4_thumb.jpg
                    [prv] => assets/downloads/img/prv/00eead497c552ab309ab66294cf5c758_P.jpg
                    [date_uploaded] => 01 - 23 - 2014
                    [time_uploaded] => 1390517578
                    [search_id] => 1390513134
                    [usage_policy] => 
                )

            [1] => stdClass Object
                (
                    [img_id] => c57d2e6f501670487fb5a5e2a016b5c1
                    [tag_name] => Fine girls
                    [image_id] => c57d2e6f501670487fb5a5e2a016b5c1
                    [category] => Fashion
                    [license] => Exclusive Utility (E
                    [author] => Daniel Barde
                    [thumb] => assets/downloads/img/thumb/c31598650ec51e6dd5725b2711920e91_thumb.jpg
                    [prv] => assets/downloads/img/prv/fa1872139b4f53a840e94d7ceca1911e_P.jpg
                    [date_uploaded] => 01 - 25 - 2014
                    [time_uploaded] => 1390657236
                    [search_id] => 1390652792
                    [usage_policy] => 
                )

        )

    [2] => Array
        (
            [0] => stdClass Object
                (
                    [img_id] => dfc7ec5aae7ce3b4397c57d4167b6417
                    [tag_name] => legs
                    [image_id] => dfc7ec5aae7ce3b4397c57d4167b6417
                    [category] => Lifestyle
                    [license] => Broad Utility (BU)
                    [author] => Lifestyle
                    [thumb] => assets/downloads/img/thumb/97f4517f6d5bdad880151d940da638d6_thumb.jpg
                    [prv] => assets/downloads/img/prv/fb7402b93ce27fe6e93e5578571e02fe_P.jpg
                    [date_uploaded] => 01 - 25 - 2014
                    [time_uploaded] => 1390656768
                    [search_id] => 1390652324
                    [usage_policy] => 
                )

        )

)

This is the code in my view.

 @if(!empty($imgs))
    @for ($i=0; $i < count($imgs) ; $i++)
        <div class="span3 transition metal">
            <figure class="top-img">
                <img src="{{$backend_url}}{{$imgs[0][$i]->thumb}}" alt="{{$imgs[0][$i]->category}}" id='img{{$imgs[0][$i]->image_id}}'>
                <figcaption class="img-meta">
                    <div class="row-fluid">
                        <div class="span8">
                            <a href="{{$base_url}}image/{{$imgs[0][$i]->search_id}}" class="img-id">#{{$imgs[0][$i]->search_id}}</a>
                            <a href="#" class="img-tags">{{$imgs[0][$i]->category}}</a>
                        </div>
                        <div class="span4">
                            <a href="#" class="btn download-btn"><i class="icon-download"></i></a>
                        </div>
                    </div>
                </figcaption> <!-- end img-meta -->
                <div class="roll-over" data-source='{{$imgs[0][$i]->image_id}}'>
                    <a href="#" class="btn"><span class="bucket"><i class='icon-shopping-cart'></i></span></a>
                </div> <!-- end roll-over -->
            </figure> <!-- end top-img -->
        </div><!--  end span3 -->
@endfor
@endif

Answer 1

这是我要做的:

 @if(!empty($imgs))
    @foreach($imgs as $tag)
        @foreach($tag as $image)
        <div class="span3 transition metal">
            <figure class="top-img">
                <img src="{{$backend_url}}{{$image->thumb}}" alt="{{$image->category}}" id='img{{$image->image_id}}'>
                <figcaption class="img-meta">
                    <div class="row-fluid">
                        <div class="span8">
                            <a href="{{$base_url}}image/{{$image->search_id}}" class="img-id">#{{$image->search_id}}</a>
                            <a href="#" class="img-tags">{{$image->category}}</a>
                        </div>
                        <div class="span4">
                            <a href="#" class="btn download-btn"><i class="icon-download"></i></a>
                        </div>
                    </div>
                </figcaption> <!-- end img-meta -->
                <div class="roll-over" data-source='{{$image->image_id}}'>
                    <a href="#" class="btn"><span class="bucket"><i class='icon-shopping-cart'></i></span></a>
                </div> <!-- end roll-over -->
            </figure> <!-- end top-img -->
        </div><!--  end span3 -->
        @endforeach
    @endforeach
 @endif

如果这有效，则意味着您跳过了两个循环之一。请注意我如何将您的 for 更改为 foreach 语句；我并不将自己定位为经验丰富的编码员，但我喜欢让变量更具可读性，而不是编写 $imgs[$i][$j]->something