laravel BadMethodCallException 带有消息“调用未定义的方法 Illuminate\Database\Query\Builder::toArray()”
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BadMethodCallException with message 'Call to undefined method Illuminate\Database\Query\Builder::toArray()'
提问by Hashmatullah Noorzai
I am working along with @Jeffrey_way series of Laracasts Many to Many Relations (With Tags)
我正在与@Jeffrey_way 系列的 Laracasts 多对多关系（带标签）一起工作
Below is the code I have written in CMD using Laravel Tinker:
下面是我使用 Laravel Tinker 在 CMD 中编写的代码：
After executing the last line of code ($article->tags()->toArray();
执行最后一行代码后（$article->tags()->toArray();
Although everything seems to be OK with my code but still I get following error:
虽然我的代码似乎一切正常，但我仍然收到以下错误：
BadMethodCallException with message 'Call to undefined method Illuminate\Database\Query\Builder::toArray()'
any help would be much appreciated :)
任何帮助将非常感激 ：）
采纳答案by YigitOzkavci
If you want to actually "get" relational data, you don't put parenthesis arount tags. This will work just fine:
如果您想真正“获取”关系数据，则不要将括号放在tags. 这将工作得很好：
$article->tags->toArray();
You put parenthesis when you need to "query" to that collection (Ex. sync, save, attach).
当您需要“查询”到该集合（例如同步、保存、附加）时，您可以放置括号。
Reference: https://laravel.com/docs/5.1/eloquent-relationships#many-to-many
参考：https: //laravel.com/docs/5.1/eloquent-relationships#many-to-many
回答by delatbabel
Try this instead:
试试这个：
$article->tags()->all()->toArray();
Underlying the tags()is probably a Query\Builderobject which represents a query that has not yet run. Instead you need a Collection object which is a query that has run, on which to call toArray(). ->all()is one such call that converts a query builder into a collection by actually running the query.
底层tags()可能是一个Query\Builder表示尚未运行的查询的对象。相反，您需要一个 Collection 对象，它是一个已运行的查询，在该对象上调用toArray(). ->all()就是这样一种调用，它通过实际运行查询将查询构建器转换为集合。
回答by AlmostPitt
I had the same problem and solved it by adding get()
我遇到了同样的问题并通过添加解决了它 get()
For example:
例如：
$article->tags()->get()->toArray();
Hope this helps someone :)
希望这对某人有所帮助:)
