Log filename and line

Need Help
1

Hi, using Cakephp 3.6, is there any way, with minimal modifications, to log the file and line (and perhaps class and function) where the log message was fired, like log4j does?

2

Up? Searched a lot without finding any solution… :disappointed:

3

https://book.cakephp.org/3.0/en/core-libraries/logging.html#creating-log-adapters
+
http://php.net/manual/en/function.debug-backtrace.php

Proof of concept :

https://pastebin.com/294W1hjw

4

Sorry, I won’t ask more… If this is useful for anyone; create a file inside src\Log\Engine\MyLog.php:

<?php

namespace App\Log\Engine;

use App\ArrayUtils;
use Cake\Log\Engine\FileLog;
use Nette\Utils\Strings;


class MyLog extends FileLog
{
    public function log($level, $message, array $context = [])
    {
        $cakeHome = realpath(dirname(realpath(__FILE__)) . DS . ".." . DS . ".." . DS . "..");
        $stacks = debug_backtrace(DEBUG_BACKTRACE_PROVIDE_OBJECT, 4);
        $stack = end($stacks);
        $file = ArrayUtils::getString($stack, "file");
        $relFile = $file;
        if (Strings::startsWith($file, $cakeHome . DS)) {
            $relFile = Strings::substring($file, strlen($cakeHome)+1);
        }
        $class = ArrayUtils::getString($stack, "class");
        $function = ArrayUtils::getString($stack, "function");
        $line = ArrayUtils::getInt($stack, "line");
        parent::log($level, "{$class}::{$function}::{$line} - {$message}", $context);
    }
}

ArrayUtils is just a helper to extract data from an array. Then, configure Cake to use this logger in app.php:

'error' => [
    'className' => 'App\Log\Engine\MyLog',
    'path' => LOGS,
    'file' => 'error',
    'url' => env('LOG_ERROR_URL', null),
    'scopes' => false,
    'levels' => ['warning', 'error', 'critical', 'alert', 'emergency'],
],