【Laravel】Traitで開始・終了ログ出力を共通化する方法！

<?php

namespace App\Traits;

use Log;

trait LogTrait
{
    /**
     * 開始ログ
     */
    public function start()
    {
        $caller = $this->fetchCaller();
        
        Log::info("{$caller['class']} {$caller['function']}() start.");
    }

    /**
     * 終了ログ
     */
    public function end()
    {
        $caller = $this->fetchCaller();

        Log::info("{$caller['class']} {$caller['function']}() end.");
    }

    /**
     * 呼び出し元情報(クラス&メソッド)を取得する
     *
     * @return 呼び出し元情報
     */
    private function fetchCaller(): array
    {
        $dbg = debug_backtrace();

        return [
            'class'    => $dbg[2]['class'],
            'function' => $dbg[2]['function'],
        ];
    }    
}

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use App\Traits\LogTrait;

class HogeController extends Controller
{
    use LogTrait;

    public function index()
    {
        $this->start();

        // 処理

        $this->end();
    }
}

[2020-03-08 07:34:47] local.INFO: App\Http\Controllers\HogeController index() start.  
[2020-03-08 07:34:47] local.INFO: App\Http\Controllers\HogeController index() end.