Php 无法在laravel中上载大于2MB的文件

目前，我正在laravel做一个CMS，我试图在laravel上传一个超过2MB的文件，它显示图像上传失败

我的控制器代码

    $this->validate($request ,[
        'title' => 'required',
        'featured' => 'required|image',
        'content' => 'required',
        'category_id' => 'required',
        'tags' => 'required'
    ]);

    $featured = $request->featured;

    $featured_new_name = $featured->getClientOriginalName();

    $featured->move('uploads/posts', $featured_new_name);

    $post = Post::create([
        'title' => $request->title,
        'slug' => str_replace(' ', '-', $request->title),
        'featured' => 'uploads/posts/' . $featured_new_name,
        'content' => $request->content,
        'category_id' => $request->category_id,
        'user_id' => Auth::id()

    ]);   

     $post->tags()->attach($request->tags);

    Session::flash('success', 'Post Created Sucessfully.');

    return redirect()->route('posts');

---

尝试在php.ini中增加以下值，例如：

memory_limit = 32M
upload_max_filesize = 24M
post_max_size = 32M

或者检查一下这个

---

增加php.ini中的内存限制是最好的主意。 如果您只是想增加此函数中的内存限制，请在函数中使用此代码

ini_set('memory_limit', '4096M'); 

如果您在php.ini文件中更改了“4M”，则只需在服务器上重新启动apache服务，然后在浏览器中使用phpinfo（）函数检查upload_max_filesize，您肯定会看到更新后的值“4M”。谢谢

;;;;;;;;;;;;;;;;
; File Uploads ;
;;;;;;;;;;;;;;;;

; Maximum allowed size for uploaded files
upload_max_filesize = 4M

ini_set('memory_limit', '4096M');