使用 Laravel 获取数组键而不是值
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Getting array keys instead of the value with laravel
提问by Eth0
Hello everyone im getting a problem while i want to loop throug an array and display it with laravel blade engine
大家好，我想循环遍历数组并使用 laravel 刀片引擎显示它时遇到问题
My controllers code is like this
我的控制器代码是这样的
$table = DB::table('tables')->select('id')->where('name', strtolower($name))->first();
$columns = Column::where('table_id', $table->id)->get();
foreach ($columns as $col) {
$data[] = $col->col_name;
};
$content = DB::table($name)->select(...$data)->get();
return view('back.group.view-table', compact('content', 'columns', 'data'));
And my blade view code is like this
我的刀片视图代码是这样的
<table class="table table-striped">
<thead>
<tr>
@foreach($columns as $column)
<th>{{ $column->dis_name }}</th>
@endforeach
</tr>
</thead>
<tbody>
@foreach ($content as $value)
<tr>
@for ($i = 0; $i < count($columns); $i++)
<td>{{ $value->key = $data[$i] }}</td>
@endfor
</tr>
@endforeach
</tbody>
</table>
This is the result wich i get with the following code
这是我使用以下代码得到的结果
The result i want to have
我想要的结果
回答by Nicolas
php has a function called array_keys();
php 有一个名为array_keys()的函数；
so it looks something like this I think
所以我认为它看起来像这样
$results = DB::table($name)->select(...$data)->get();
$content = $results->first();
$keys = array_keys($content->toArray());
this will get you the keys. If you need the keys from each result just loop over $results and for each $result get the keys, using the array_keys syntax.
这会给你钥匙。如果您需要每个结果的键，只需循环 $results 并为每个 $result 获取键，使用 array_keys 语法。
回答by online Thomas
Another solution would be using array_flip()it will flip the keys and values around.
另一种解决方案是使用array_flip()它将翻转键和值。
回答by Kris Roofe
use array_keys()to get all the keys from an array, you also can use foreach($arr as $key => $value)
用于array_keys()从数组中获取所有键，您也可以使用foreach($arr as $key => $value)
回答by Eth0
I Found the answer i just change my view from this
我找到了答案我只是改变了我的看法
<table class="table table-striped">
<thead>
<tr>
@foreach($columns as $column)
<th>{{ $column->dis_name }}</th>
@endforeach
</tr>
</thead>
<tbody>
@foreach ($content as $value)
<tr>
@for ($i = 0; $i < count($columns); $i++)
<td>{{ $value->key = $data[$i] }}</td>
@endfor
</tr>
@endforeach
</tbody>
</table>
To this
对此
<table class="table table-striped">
<thead>
<tr>
@foreach($columns as $column)
<th>{{ $column->dis_name }}</th>
@endforeach
</tr>
</thead>
<tbody>
@foreach ($content as $value)
<tr>
@foreach ($data as $key)
<td>{{ $value->$key }}</td>
@endforeach
</tr>
@endforeach
</tbody>
</table>
回答by Aman Kumar
Change like this
改成这样
<table class="table table-striped">
<thead>
<tr>
@foreach($columns as $column)
<th>{{ $column->dis_name }}</th>
@endforeach
</tr>
</thead>
<tbody>
@foreach ($content as $value)
<tr>
<td>{{ $value->name }}</td>
</tr>
@endforeach
</tbody>
</table>
