I decided to connect my tables from databases.

I have four tables. inspections, requisitions, infractions and encouragements.

Migration for inspections table:

public function up()
{
    Schema::create('inspections', function (Blueprint $table) {
        $table->increments('id');
        $table->integer('user_id')->unsigned();
        $table->integer('requisition_id')->unsigned();
        $table->string('encouragement_data')->nullable(true);
        $table->text('infraction_data')->nullable(true);
        $table->timestamps();
		
        $table->foreign('user_id')->references('id')->on('users')->onDelete('cascade');
        $table->foreign('requisition_id')->references('id')->on('requisitions')->onDelete('cascade');
    });
}

For example {"1":"0"}

1 for id of infractions table and 0 for check or uncheck the checkbox I mentioned the example here: https://www.laracasts.com/discuss/channels/laravel/how-to-store-all-checkboxes-in-laravel

Migration for requisitions table:

public function up()
{
    Schema::create('requisitions', function (Blueprint $table) {
        $table->increments('id');
        $table->integer('school_id')->unsigned();
        $table->integer('user_id')->unsigned();
        $table->integer('inspector_user_id')->unsigned()->nullable();
        $table->integer('type');
        $table->boolean('status');
        $table->boolean('approved');
        $table->timestamps();
		
        $table->foreign('school_id')->references('id')->on('schools')->onDelete('cascade');
        $table->foreign('user_id')->references('id')->on('users')->onDelete('cascade');
        $table->foreign('inspector_user_id')->references('id')->on('users')->onDelete('cascade');
    });
}

Migration for infractions table:

public function up()
{
    Schema::create('infractions', function (Blueprint $table) {
        $table->increments('id');
        $table->string('title');
        $table->integer('score');
        $table->timestamps();
    });
}

Migration for encouragements table:

public function up()
{
    Schema::create('encouragements', function (Blueprint $table) {
        $table->increments('id');
        $table->string('title');
        $table->integer('unit_score');
        $table->integer('max_score');
        $table->timestamps();
    });
}

There are encouragement_data and infraction_data fields in inspections table. And I create a form and store the infractions and encouragements form like JSON in site https://www.laracasts.com/discuss/channels/laravel/how-to-store-all-checkboxes-in-laravel

Now I create a new view. for display JSON title of infractions table. How should I do?

InspectionController.php

public function index()
{
    $inspections = Inspection::latest()->whereNotNull('infraction_data')->get();
    return view('Admin.list-violations-school.all', compact('inspections'));
}

inspections.blade.php

@foreach($inspections as $inspection)
    <?php $infraction_data = json_decode(json_encode($inspection->infraction_data),TRUE); ?>
    <tr>
        <td>{{ $infraction_data["id"] }}</td>
        <td>{{ $infraction_data["title"] }}</td>
    </tr>
@endforeach

I get this error.

Undefined index: id

Thanks for answer.