在php中编写回调函数时传递参数(Laravel 5) [英] Passing parameters when writing a callback function in php (Laravel 5)

问题描述

我正在使用Laravel 5在php中编程.我有这段代码.

I'm programming in php using Laravel 5. I have this code.

    $newUser = $this->create($request->all());
    $newUser->save();

    $newAccount = new Account(['user_id' => $newUser->getAttribute('id')]);
    $newAccount->save();

    Mail::send('emails.welcome', ['username' => $newUser->name, 'active_token' => $newUser->active_token], function($message)
    {
        $message->to($newUser->email, $newUser->name)->subject('Welcome');
    });

这里的问题是我不知道如何在回调函数中传递"newUser"变量.由于范围原因，它不起作用.那么，在编写回调函数时如何传递参数?为了在那个范围内使用它们?

The problem here is that I don't know how to pass the "newUser" variable within the callback function. It is not working because of the scope. So, how can I pass parameters when writing a callback function? in order to use them inside that scope?

谢谢

推荐答案

使用php匿名函数，您可以使用 use($ variable)包含来自父作用域的变量:

With php anonymous functions you can include variables from the parent scope with use($variable):

 Mail::send(
    'emails.welcome', 
    ['username' => $newUser->name, 'active_token' => $newUser->active_token],
    function($message) use($newUser)
    {
        $message->to($newUser->email, $newUser->name)->subject('Welcome');
    });

http://php.net/manual/en/functions.onymous.php#example-195

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