如何通过Monolog从yml配置文件％region％中记录参数

Question

I tried to use formatter:

services:
monolog.formatter.tits:
    class: Monolog\Formatter\LineFormatter
    arguments:
        - "[%%datetime%%] [%extra.region%] %%channel%%.%%level_name%%: %%message%% %%context%% %%extra%%\n" "%region%"

But i failed and get this:

[2016-02-23 09:56:54][%region%] event.DEBUG: Notified event "kernel.terminate" to listener "Symfony\Component\HttpKernel\EventListener\ProfilerListener::onKernelTerminate". [] []

there is [%region%] instead my region parameter from yml config file.

How to make this run?

Answer 1

Finally I found answer.

services:
monolog.formatter.q3dm6:
    class: Monolog\Formatter\LineFormatter
    arguments:
        - "[%%datetime%%] [region:%region%] %%channel%%.%%level_name%%: %%message%% %%context%% %%extra%%\n"

You need only one % if you want to pull it from yml config file. Now I getting right log:

[2016-02-23 10:50:38] [region:pl] request.CRITICAL: Uncaught PHP Exception Twig_Error_Syntax...

Answer 2

You need to double your '%' around the extra.region parameter to make it work:

services:
monolog.formatter.tits:
class: Monolog\Formatter\LineFormatter
arguments:
    - "[%%datetime%%] [%%extra.region%%] %%channel%%.%%level_name%%: %%message%% %%context%% %%extra%%\n" "%%region%%"