Laravel customize log formatter

Question

I want to customize the log line format of only the errorlog channel. Is it possible to define it in the config file (config/logging.php), or i have to made a class for it as the doc says? But it shows me no hint..

Can somebody show me some example?

Many thanks in advance!

Answer 1

The easiest method would be passing your own format to the LineFormatter class:

[
    'driver' => 'monolog',
    'formatter' => Monolog\Formatter\LineFormatter::class,
    'formatter_with' => [
        'format' => "[%datetime%] %channel%.%level_name%: %message% %context% %extra%\n",
    ],
]

You can look at the LineFormatter to see that $format is accepted in the constructor.

You can create your own class implementing the FormatterInterface and look to the ~20 other formatters as examples in the Monolog/Formatter directory.