Question

$product=ProductCatalog::where(['campaign_id' => $campaign_id])->get();
print($product);

输出：

[{"id":7,"campaign_id":64,"product_id":26,"created_at":"2018-03-20 10:29:51","updated_at":"2018-03-20 10:29:51"},{"id":8,"campaign_id":64,"product_id":27,"created_at":"2018-03-20 10:30:26","updated_at":"2018-03-20 10:30:26"}]

从$ product我想获取product_id的值

如何从$ product中获取价值？

请帮我解决这个问题...

Answer 1

您可以使用如下的toArray()口才。

toArray方法将集合转换为普通的PHP array。如果集合的值为Eloquent模型，则模型也将转换为数组。

$product = ProductCatalog::where(['campaign_id' => $campaign_id])->get()->toArray();

然后您可以根据需要访问数组属性。见下面的示例。

foreach($product as $productValue) {
    print_r($productValue['product_id']);
}

Answer 2

$productCatalogs = ProductCatalog::with('product')->where(['campaign_id' => $campaign_id])->get();
foreach($productCatalogs as $productCatalog){
    print_r($productCatalog->product);
}

如果您在ProductCatalog Model（ProductCatalog.php）中定义了关系，那么这应该有用。

如何从laravel中的变量中获取值？

2 个答案: