简体   繁体   中英

laravel : count(): Parameter must be an array or an object that implements Countable

I'm using Laravel 5.3 and my php ver is 7.1

when i called SoftDeletes class i get that error

ErrorException in Builder.php line 1231: count(): Parameter must be an array or an object that implements Countable

this is my model

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\SoftDeletes;


class Post extends Model
{

    use SoftDeletes;

    protected $dates = ['deleted_at'];

    protected $fillable = [

        'title','content','image','category_id','slug'
    ];



    public function category(){


        return $this->belongsTo('App\Category');
    }
}

and it is my controller

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

use App\Post;

use App\Category;

use Session;

class PostsController extends Controller
{
    /**
     * Display a listing of the resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function index()
    {



        return view('admin.posts.index')->with('posts',Post::all());

    }

    /**
     * Show the form for creating a new resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function create()
    {
        $category = Category::all();

        if($category->count() == 0){

            Session::flash('info' , 'You must create at least 1 category to add a new post');

            return redirect()->back();
        }

        return view('admin.posts.post')->with('categories',$category);
    }

    /**
     * Store a newly created resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\Response
     */
    public function store(Request $request)
    {

        $this->validate($request,[

            'title'         => 'required|max:255',
            'image'         => 'required|image',
            'content'       => 'required',
            'category_id'   => 'required'
        ]);


        $image = $request->image;

        $image_new_name = time().$image->getClientOriginalName();

        $image->move('/uploads/posts' , $image_new_name);



        $post= Post::create([

            'title'          => $request->title,
            'image'          => '/uploads/posts/' . $image_new_name,
            'content'        => $request->content,
            'category_id'    => $request->category_id,
            'slug'           => str_slug($request->title)
        ]);

        Session::flash('success' , 'You created a new post');

        return redirect()->back();



    }

    /**
     * Display the specified resource.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function show($id)
    {
        //
    }

    /**
     * Show the form for editing the specified resource.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function edit($id)
    {
        //
    }

    /**
     * Update the specified resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function update(Request $request, $id)
    {
        //
    }

    /**
     * Remove the specified resource from storage.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function destroy($id)
    {
        //
    }
}

and when i delete the count() function also get the same error

how can i solve this error

Laravel 5.3 and my PHP ver is 7.1 is not compatible with each other Refer to this issue in the github

To solve this error you can do two things

  • Upgrade laravel 5.3 to laravel 5.5 refer this ( 5.3 to 5.4 , 5.4 to 5.5 )
  • Downgrade you php to php 5.6

I changed line 1231 in C:\\laragon\\www\\mystore\\vendor\\laravel\\framework\\src\\Illuminate\\Database\\Eloquent

to

$originalWhereCount = !empty($query->wheres) ? count($query->wheres) : 0;

I had the same problem with the laravel find() method returning an object and not an array. Therefore the count() method will not work. Try: Stackoverflow solution or

Post::all()->toArray();

Will return an array that will work with the count() method.

As a workaround add this to your routes file:

if(version_compare(PHP_VERSION, '7.2.0', '>=')) {
    error_reporting(E_ALL ^ E_NOTICE ^ E_WARNING);
}

The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.

 
粤ICP备18138465号  © 2020-2024 STACKOOM.COM