Count in PHP via variable value

Question

I’m struggling with something relatively simple, but it’s causing me a headache because I always get error.

In an application I need to get the amount of open classes coming from the Crud of Classes. It was to show the number of classes with open status that in this case are 6, but I’m not able to implement this to appear on Dashboard. I can only set the value manually, in this example I put as 40, someone can help me?

Canvas:

And here’s the excerpt from the code:

@extends('layouts.app')

@section('content')
<div class="row">
        <div class="col-lg-6 col-xs-12">
          <!-- small box -->
          <div class="small-box bg-yellow">
            <div class="inner">
              <h3>40</h3>

              <p>Turmas Abertas</p>
            </div>
            <div class="icon">
              <i class="ion ion-person-add"></i>
            </div>
            <a href="treinamentos" class="small-box-footer">Veja Mais <i class="fa fa-arrow-circle-right"></i></a>
          </div>
    </div>

<div class="row">
<div class="col-md-6">
            <div class="panel panel-default">

                <div class="panel-heading">Turmas com status <strong>Aberta</strong></div>

                <div class="panel-body table-responsive">
                    <table class="table table-bordered table-striped ajaxTable">
                        <thead>
                        <tr>
                            <th><center> @lang('Nome do Treinamento')</th> 
                            <th><center> @lang('Data de Inicio')</th> 
                            <th><center> @lang('Data de Conclusão ')</th> 
                            <th><center> @lang('Situação da Turma')</th> 
                            <th>Ações<center>&nbsp;</th>
                        </tr>
                        </thead>
                        @foreach($treinamentos as $treinamento)
                            @if($treinamento->situacao_turma == "Aberta")
                            <tr>

                                <td><center> ? </td>
                                <td><center>{{ $treinamento->data_inicio }} </td> 
                                <td><center>{{ $treinamento->data_conclusao }} </td> 
                                <td><center>{{ $treinamento->situacao_turma  }} </td>
                                <td><center>

                                    @can('treinamento_view')
                                    <a href="{{ route('admin.treinamentos.show',[$treinamento->id]) }}" class="btn btn-xs btn-primary">@lang('quickadmin.qa_view')</a>
                                    @endcan
                                </td>
                            </tr>
                        @endif
                        @endforeach
                    </table>
                </div>
            </div>
</div>

@endsection

Imagery:

CONTROLLER CODE:

<?php

namespace App\Http\Controllers;

use App\Http\Requests;
use Illuminate\Http\Request;

class HomeController extends Controller
{
    /**
     * Create a new controller instance.
     *
     * @return void
     */
    public function __construct()
    {
        $this->middleware('auth');
    }

    /**
     * Show the application dashboard.
     *
     * @return \Illuminate\Http\Response
     */
    public function index()
    {

        $cargos = \App\Cargo::latest()->get(); 
        $setores = \App\Setore::latest()->get(); 
        $turmas = \App\Turma::latest()->get(); 
        $treinamentos = \App\Treinamento::latest()->get(); 

        return view('home', compact( 'cargos', 'setores', 'turmas', 'treinamentos' ));
    }
}

Answer 1

After clarification of doubts, I arrived at this answer:

In your Controller you will count to get the total:

public function index()
    {

        $cargos = \App\Cargo::latest()->get(); 
        $setores = \App\Setore::latest()->get(); 
        $turmas = \App\Turma::latest()->get(); 
        $treinamentos = \App\Treinamento::latest()->get(); 
          $total = 0;
          foreach($treinamentos as $treinamento)
            if($treinamento->situacao_turma == "Aberta") $total++;

        return view('home', compact( 'cargos', 'setores', 'turmas', 'treinamentos', 'total' ));
    }

Then just insert it into the view:

<h3>{{ $total }}</h3>

The rest of the code is the same.