SQLSTATE[01000]: Warning: 1265 Data truncated for column 'infraction_id' at row 1

I did store checkbox array value into table using below's code

public function store(Request $request)
{
    $infraction_id = $request->infraction_id;
    if(is_array($infraction_id))
    {
        $infraction_id = implode(',', $infraction_id);

    }
    $inspection = new Inspection();
    $inspection->infraction_id = $infraction_id;
    $inspection->encouragement_id = 1;
    $inspection->infraction_data = $request->infractions;
    $inspection->encouragement_data = $request->encouragements;
    $inspection->user_id = auth()->user()->id;
    $inspection->requisition_id = $request->input('requisition_id');
    $inspection->save();
    $inspection->requisitions()->update(['status' => 1]);
    return redirect()->route('inspections.index');
}

create.blade.php

<div class="panel-body">
    <div class="table-responsive">
        <table class="table table-bordered">
            @foreach($infractions as $infraction)
                <tr>
                    <th>{{ $infraction->title }}</th>
                    <td>
                        <input type="checkbox" name="infraction_id[]" value="{{ $infraction->id }}" data-toggle="toggle" data-on="Yes" data-off="No" data-onstyle="success" data-offstyle="danger" data-score="{{ $infraction->score }}">
                    </td>
                </tr>
            @endforeach
        </table>
    </div>
    <div class="text-right">Total:
        <span id="total" class="translate">0</span>
    </div>
</div>