Laravel5-非静态方法不应该被静态调用 [英] Laravel5 - Non-static method should not be called statically

问题描述

我不知道这是什么错误.请有人给我一些解释

I don't know what is this error. Please someone give me some explaination

在我的UserController.php

class UserController extends Controller {
    public function viewCard($card_id) {
        return Tag::test($card_id);
    }
}

和我的模型Tag.php

class Tag extends Model {
    public function test($card_id){
        return DB::SELECT(DB::RAW("SELECT name FROM tagmap tm, tags t WHERE t.id = tm.tag_id AND tm.card_id = :card_id"), ['card_id'=>$card_id]);
    }
}

我不知道它在哪里失败，我在哪里做错了...

i don't know where it fails, where I do wrong...

谢谢....

推荐答案

public function test()不是静态方法.当您尝试使用Tag::test()访问静态方法时，它将失败，因为..该方法不是静态的.

public function test() is not a static method. When you try to access a static method with Tag::test() it will fail, because.. well the method isn't static.

您有两个选择:

1)将方法设置为静态

1) Set your method to static

class Tag extends Model {
    public static function test($card_id){
        return DB::SELECT(DB::RAW("SELECT name FROM tagmap tm, tags t WHERE t.id = tm.tag_id AND tm.card_id = :card_id"), ['card_id'=>$card_id]);
    }
}

2)通过首先实例化您的类将其作为实例方法调用:

2) Invoke it as an instance method by first instantiating your class:

$tag = new Tag();
$tag->test($card_id);

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