docs: Add troubleshooting doc (logging)

[tienvx]

Add document for this change #689

[coveralls]

Pull Request Test Coverage Report for Build 12315086252

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 96.3%

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Totals
Change from base Build 12130132873:	0.0%
Covered Lines:	2577
Relevant Lines:	2676

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💛 - Coveralls

[YOU54F]

nice! can users set env var in their shell outside of any code?

[tienvx]

can users set env var in their shell outside of any code?

Yes, they can if they customize the code a bit:

use PhpPact\Log\Logger;
use PhpPact\Log\Enum\LogLevel;
$logger = Logger::instance();
$level = \getenv('PACT_LOGLEVEL');
$logger->attach(new File(\getenv('PACT_LOG'), LogLevel::from($level)));
$logger->attach(new Buffer(LogLevel::from($level)));
$logger->attach(new Stdout(LogLevel::from($level)));
$logger->attach(new Stderr(LogLevel::from($level)));
$logger->apply();

use PhpPact\Standalone\MockService\MockServerConfig;
$config->setLogLevel(\getenv('PACT_LOGLEVEL'));

use PhpPact\Standalone\ProviderVerifier\Model\VerifierConfig;
$config->setLogLevel(\getenv('PACT_LOGLEVEL'));