Laravel 未定义变量
我现在有个问题,我无法在我的查看页面中显示我喜欢的内容。 这是我想在我的视图刀片上显示的行(比如_计数器),但一旦我调用它,就会得到未定义的变量,比如_计数器Laravel 未定义变量,laravel,laravel-5,laravel-5.2,Laravel,Laravel 5,Laravel 5.2,我现在有个问题,我无法在我的查看页面中显示我喜欢的内容。 这是我想在我的视图刀片上显示的行(比如_计数器),但一旦我调用它,就会得到未定义的变量,比如_计数器 public function getLikeCounter($post_id) { $post = Post::find($post_id); $number = null; $like_counter = \DB::table('likes')->where('post_id', $post-&g
public function getLikeCounter($post_id) {
$post = Post::find($post_id);
$number = null;
$like_counter = \DB::table('likes')->where('post_id', $post->id)->where('like',!$number)->count();
return View::make('layouts.viewvideo', ['like_counter' => $like_counter]);
}
视图:
]))
谢谢你的帮助。试试这个
return View::make('layouts.viewvideo')->with('like_counter', $like_counter);
试试这个
return View::make('layouts.viewvideo')->with('like_counter', $like_counter);
Nvm。。通过直接添加到视图中修复了此问题:
<span class="badge">{{ $post->likes->where('post_id', $post->id)->where('like', 1)->count() }}</span>
{{$post->likes->where('post_id',$post->id)->where('like',1)->count()}
Nvm。。通过直接添加到视图中修复了此问题:
<span class="badge">{{ $post->likes->where('post_id', $post->id)->where('like', 1)->count() }}</span>
{{$post->likes->where('post_id',$post->id)->where('like',1)->count()}
试试这个:
return view('layouts.viewvideo',compact('like_counter'));
希望这对您有所帮助。尝试一下:
return view('layouts.viewvideo',compact('like_counter'));
希望这对您有所帮助。我认为问题出在您的代码这一行where子句上:
$like_counter = \DB::table('likes')->where('post_id', $post->id)->where('like',!$number)->count();
拉威尔5.2
更改此项:
->where('like', '!=', $number)->count();
差异:其中
类似于!=null我认为问题出在您的代码这一行的where子句上:
$like_counter = \DB::table('likes')->where('post_id', $post->id)->where('like',!$number)->count();
拉威尔5.2
更改此项:
->where('like', '!=', $number)->count();
差异:其中类似于!=空更简单的方法是获取记录并对其进行计数
public function getLikeCounter($post_id) {
$post = Post::find($post_id);
$number = null;
$like_counter = count(\DB::table('likes')->where('post_id', $post->id)
->where('like','!=',$number)->get());
return View::make('layouts.viewvideo', ['like_counter' => $like_counter]);
}
一个更简单的方法是获取记录并进行计数
public function getLikeCounter($post_id) {
$post = Post::find($post_id);
$number = null;
$like_counter = count(\DB::table('likes')->where('post_id', $post->id)
->where('like','!=',$number)->get());
return View::make('layouts.viewvideo', ['like_counter' => $like_counter]);
}