Php 如何在laravel中将数组传递给trait？

我正在尝试重构我的控制器，我只是创建了Trait并在其中加入了一些方法：

我的控制器之前（一种方法）：

创建特征后：

public function edit(Product $product)
{
    $categories = Category::get();

    $main_image = $product->images()->where('main_image', 1)->first();

    if ($main_image) {
        $image = [];
        $this->ShowMainImage($main_image, $image);
    }

    $other_images = $product->images()->where('main_image', 0)->get();

    if ($other_images) {
        $images = [];
        $this->ShowOtherImages($other_images,$images);
    }

    return view('merchant.product.update',compact(
        'product',
        'categories',
        'image',
        'images'
    ));
}

我的特点：

trait ProductTrait{

    public function ShowMainImage($main_image,$image)
    {
        $image[] = [
            "name"  => $main_image->image,
            "type"  => \FileUploader::mime_content_type($main_image->image_path),
            "size"  => filesize('uploads/product_images/' . $main_image['image']),
            "file"  => $main_image->image_path,
            "local" => $main_image->image_path,
            'data' => [
                "id"  => $main_image->id,
            ],
        ];
    }

    public function ShowOtherImages($other_images,$images)
    {
        foreach ($other_images as $image) {
            $images[] = [
                "name"  => $image->image,
                "type"  => \FileUploader::mime_content_type($image->image_path),
                "size"  => filesize('uploads/product_images/' . $image['image']),
                "file"  => $image->image_path,
                "local" => $image->image_path,
                'data' => [
                    "id"  => $image->id,
                ],
            ];
        }
    }

}

前一个在工作，但第二个在不工作！

$image

和

$images

---

如何将空数组发送到trait并使用数据调整数组大小

如果您发送

图像

和

图像

，但不返回它们，您可以做的是从trait方法返回

图像

和

图像

，而不是发送它们

public function edit(Product $product)
{
   $categories = Category::get();

   $main_image = $product->images()->where('main_image', 1)->first();

   if ($main_image) {
       $image = $this->ShowMainImage($main_image);;
   }

   $other_images = $product->images()->where('main_image', 0)->get();

   if ($other_images) {
      $images = $this->ShowOtherImages($other_images);
  }

  return view('merchant.product.update',compact(
    'product',
    'categories',
    'image',
    'images'
   ));
}

你的特点是

trait ProductTrait{

public function ShowMainImage($main_image)
{
    return [
        "name"  => $main_image->image,
        "type"  => \FileUploader::mime_content_type($main_image->image_path),
        "size"  => filesize('uploads/product_images/' . $main_image['image']),
        "file"  => $main_image->image_path,
        "local" => $main_image->image_path,
        'data' => [
            "id"  => $main_image->id,
        ],
    ];
}

public function ShowOtherImages($other_images)
{
   $images = [];
    foreach ($other_images as $image) {
        $images[] = [
            "name"  => $image->image,
            "type"  => \FileUploader::mime_content_type($image->image_path),
            "size"  => filesize('uploads/product_images/' . $image['image']),
            "file"  => $image->image_path,
            "local" => $image->image_path,
            'data' => [
                "id"  => $image->id,
            ],
        ];
    }

   return $images;
}
}

---

Mahmoud兄弟，你能给我一本好书或任何能让我了解PHP OOP的东西吗（我不知道PHP OOP的具体书籍，但我建议您在Lynda上观看这门课程“PHP:面向对象编程”，您可能会在某个地方发现它是免费的，这门课程将让您在PHP中快速启动并运行OOP。您还可以使用公共函数ShowOtherImages（$other_images，$images=[]）{}

trait ProductTrait{

public function ShowMainImage($main_image)
{
    return [
        "name"  => $main_image->image,
        "type"  => \FileUploader::mime_content_type($main_image->image_path),
        "size"  => filesize('uploads/product_images/' . $main_image['image']),
        "file"  => $main_image->image_path,
        "local" => $main_image->image_path,
        'data' => [
            "id"  => $main_image->id,
        ],
    ];
}

public function ShowOtherImages($other_images)
{
   $images = [];
    foreach ($other_images as $image) {
        $images[] = [
            "name"  => $image->image,
            "type"  => \FileUploader::mime_content_type($image->image_path),
            "size"  => filesize('uploads/product_images/' . $image['image']),
            "file"  => $image->image_path,
            "local" => $image->image_path,
            'data' => [
                "id"  => $image->id,
            ],
        ];
    }

   return $images;
}
}