如何加入产品和产品变体以获得每个产品名称的变体

Question

如何加入产品和产品变体以获取每个变体的产品名称。我得到所有变体，但是我的循环每次重复使用产品变体的产品名称。 我的代码是：

public function viewAllProducts($user_id){ 
    $SelectProducts_Query = mysqli_query($this->conn, "SELECT smpr.product_id, smpr.user_id, smpr.product_name, smpr.product_sizes, smpr.product_photo, smpr.product_created, smpr.product_updated, smpq.quantity_id, smpq.quantity_product_id, smpq.quantity_user_id, smpq.quantity_available, smpq.quantity_price, smpq.quantity_cost, smpq.quantity_size_name FROM ssm_products_quantity as smpq inner join ssm_products as smpr on smpq.quantity_product_id=smpr.product_id WHERE smpr.user_id = $user_id order by smpr.product_id DESC"); 
    if($SelectProducts_Query){ 
     while($view_all_products = mysqli_fetch_array($SelectProducts_Query)){ 
      $view_all_products_details[] = array(
       "product_id" => $view_all_products["product_id"], 
       "product_name" => $view_all_products["product_name"], 
       "product_photo" => $view_all_products["product_photo"], 
       "product_sizes" => $view_all_products["product_sizes"], 
       "product_created_date" => $view_all_products["product_created"], 
       "product_updated_date" => $view_all_products["product_updated"], 
       "sizes" => array(
        "size_id" => $view_all_products["quantity_id"], 
        "size_product_id" => $view_all_products["quantity_product_id"], 
        "size_available_id" => $view_all_products["quantity_available"] 
       ) 
      ); 
     } 
     return $view_all_products_details; 
    }else{ 
     return $view_all_products_details = "false"; 
    } 
} 

现在我得到的记录是这样的：

我想这样的记录：

{ 
    "error":false, 
    "products_detail":[ 
     { 
      "product_id":"24", 
      "product_name":"Miror", 
      "product_photo":"product_images\/1-dummy-17-07-11-10-26-06.jpg", 
      "product_sizes":"2", 
      "product_created_date":"2017-07-11 13:26:06", 
      "product_updated_date":"0000-00-00 00:00:00", 
      "sizes":{ 
       "size_id":"1", 
       "size_product_id":"24", 
       "size_available_id":"50" 
      },{ 
       "size_id":"2", 
       "size_product_id":"24", 
       "size_available_id":"20" 
      } 
     }, 
     { 
      "product_id":"25", 
      "product_name":"Pipes", 
      "product_photo":"product_images\/1-pipes-17-07-11-10-22-08.jpg", 
      "product_sizes":"2", 
      "product_created_date":"2017-07-11 13:26:06", 
      "product_updated_date":"0000-00-00 00:00:00", 
      "sizes":{ 
       "size_id":"3", 
       "size_product_id":"25", 
       "size_available_id":"20" 
      },{ 
       "size_id":"4", 
       "size_product_id":"25", 
       "size_available_id":"20" 
      } 
     } 
    ] 
} 

有我的解决方案吗？

Answer 1

使用你的产品ID作为数组索引

试试这个：

public function viewAllProducts($user_id){ 
    $SelectProducts_Query = mysqli_query($this->conn, "SELECT smpr.product_id, smpr.user_id, smpr.product_name, smpr.product_sizes, smpr.product_photo, smpr.product_created, smpr.product_updated, smpq.quantity_id, smpq.quantity_product_id, smpq.quantity_user_id, smpq.quantity_available, smpq.quantity_price, smpq.quantity_cost, smpq.quantity_size_name FROM ssm_products_quantity as smpq inner join ssm_products as smpr on smpq.quantity_product_id=smpr.product_id WHERE smpr.user_id = $user_id order by smpr.product_id DESC"); 
    if($SelectProducts_Query){ 
    while($view_all_products = mysqli_fetch_array($SelectProducts_Query)){ 
     $pid = $view_all_products["product_id"]; 
     //check the array for product with id is already exists, 
     //if not then add the data to array[pid] without the sizes 
     if(!isset($view_all_products_details[$pid]){ 
     $view_all_products_details[$pid] = array(
      "product_id" => $pid, 
      "product_name" => $view_all_products["product_name"], 
      "product_photo" => $view_all_products["product_photo"], 
      "product_sizes" => $view_all_products["product_sizes"], 
      "product_created_date" => $view_all_products["product_created"], 
      "product_updated_date" => $view_all_products["product_updated"] 
     ); 
     } 
     //add the array "sizes" as multidimensional array 
     //you can set the size_id as index too but i think it is not necessary 
     $view_all_products_details[$pid]["sizes"][] = array(
      "size_id" => $view_all_products["quantity_id"], 
      "size_product_id" => $view_all_products["quantity_product_id"], 
      "size_available_id" => $view_all_products["quantity_available"] 
    ); 
    } 
    return $view_all_products_details; 
    }else{ 
    return $view_all_products_details = "false"; 
    } 
}