刀片 php 中的 Laravel 打印数组

Laravel print array in blade php

提问by John Does Legacy

I want to show an array in my .blade.php, but it does not work properly so my controller looks like this:

我想在我的 .blade.php 中显示一个数组，但它不能正常工作，所以我的控制器看起来像这样：

class WatchController extends Controller
{

    public function index()
    {
        $watchFolderPath = 'C:\xampp\htdocs\Pro\rec\';
        $watchFolder     = $this->dirToArray($watchFolderPath);
        return view('watch.new')->with('watchFolder', $watchFolder);
    }

    # Get Directories of Path as Array
    function dirToArray($dir) {

        $result = array();

        $cdir = scandir($dir);

        foreach ($cdir as $key => $value)
        {
            if (!in_array($value,array(".","..")))
            {
                if (is_dir($dir . DIRECTORY_SEPARATOR . $value))
                {
                    $result[$value] = $this->dirToArray($dir . DIRECTORY_SEPARATOR . $value);
                }
                else
                {
                    $result[] = $value;
                }
            }
        }
        return $result;
    }
}

And inside my blade I just tried to call it like this:

在我的刀片中，我只是尝试这样称呼它：

{{ $watchFolder }}

but it did not work, I get the following error:

但它没有用，我收到以下错误：

htmlentities() expects parameter 1 to be string, array given

htmlentities() 期望参数 1 是字符串，给定数组

Edit: The array I get shows all Folders/Files with subfolder in a directory. (used dd())

编辑：我得到的数组显示目录中所有带有子文件夹的文件夹/文件。（使用 dd()）

Currently it looks like this:

目前它看起来像这样：

array:6 [▼
  123123 => array:2 [▼
    "subfolder1" => array:1 [▼
      0 => "video.mpg"
    ]
    "subfolder2" => array:1 [?]
  ]
  789 => array:2 [?]
  "folder1" => array:2 [?]
  "folder2" => array:2 [?]
  "folder3" => array:2 [?]
  "folder1" => []
]

回答by ash

From your question it appears as if you want to output the arrayfor debugging purposes which as I have commented you can simply use <?phpand ?>tags within your blade templates.

从您的问题看来，您似乎想输出数组用于调试目的，正如我所评论的，您可以简单地在刀片模板中使用<?php和?>标记。

<?php dd($array); ?>

However, blade has a raw output tag pair which is {!!and !!}.

但是，blade 有一个原始输出标签对，即{!!和!!}。

Once you're ready to display the output of your directory structure you should assign it to your view.

准备好显示目录结构的输出后，您应该将其分配给您的视图。

There are 2 quick ways of using it either with Reflection; inside your controller:

有 2 种快速使用它的方法，或者与 Reflection 一起使用；在您的控制器内：

class WatchController extends Controller
{
    public function index(\Illuminate\Filesystem\Filesystem $filesystem)
    {
        $files = $filesystem->allFiles($watchFolderPath);

        // Your code.

        return view('name', ['files' => $files]);
    }
}

Or to call it from the container:

或者从容器调用它：

class WatchController extends Controller
{
    public function index()
    {
        $files = app('files')->allFiles($watchFolderPath);

        // Your code.

        return view('name', ['files' => $files]);
    }
}

---

---

Also you shouldbe using the Filesystem, there is no need to reinvent the wheel – You should read the manual.

此外，您应该使用Filesystem，无需重新发明轮子 - 您应该阅读手册。

回答by Andrew

To just output the array in blade for debugging purposes:

仅出于调试目的在刀片中输出数组：

        @php
            var_dump($arr);
        @endphp

Then use a foreach loop as mentioned.

然后使用前面提到的 foreach 循环。

回答by Alexey Mezenin

You should use @foreach:

你应该使用@foreach：

@foreach ($watchFolder as $key => $value)
    Key: {{ $key }}    
    Value: {{ $value }} 
@endforeach

Or

或者

@foreach ($watchFolder as $w)
    {{ $w->name }}    
@endforeach

回答by Letlhogonolo Letlape

For those that might come looking...like me

对于那些看起来像我一样的人

echo implode("\n",$array);

else if its multidimensional array

否则如果它的多维数组

echo implode("\n",array_collapse($array));