带有带数据透视标签的产品我如何访问关系

Product with tags with pivot how can i access relationship

以下 $product returns 产品对象。 但是我怎样才能通过foreach访问relations:array "tags"?

当我执行 $tags->tags 时,我得到了产品的标签 table。

前叉:

foreach ($product as $tags) {

}

实例:

$product        = Product::with('tags')->where('id',$id)->get();

输出:

Product {#371 ▼
#table: "products"
#connection: null
#primaryKey: "id"
#keyType: "int"
#perPage: 15
+incrementing: true
+timestamps: true
#attributes: array:10 [▶]
#original: array:10 [▶]
#relations: array:1 [▼
"tags" => Collection {#399 ▼
  #items: array:2 [▼
    0 => Tag {#397 ▼
      #connection: null
      #table: null
      #primaryKey: "id"
      #keyType: "int"
      #perPage: 15
      +incrementing: true
      +timestamps: true
      #attributes: array:4 [▶]
      #original: array:6 [▶]
      #relations: array:1 [▶]
      #hidden: []
      #visible: []
      #appends: []
      #fillable: []
      #guarded: array:1 [▶]
      #dates: []
      #dateFormat: null
      #casts: []
      #touches: []
      #observables: []
      #with: []
      #morphClass: null
      +exists: true
      +wasRecentlyCreated: false
    }

使用 first 而不是 get 来获取模型实例而不是集合。

$product = Product::with('tags')->where('id', $id)->first();

然后你可以遍历每个标签。

foreach ($product->tags as $tag) {
    // do something
}