What are the best practices for handling logging and argument processing in PHP application classes without relying heavily on inheritance?

When handling logging and argument processing in PHP application classes without relying heavily on inheritance, it's important to use composition over inheritance to promote code reuse and maintainability. By injecting the necessary dependencies into the class through constructor injection, we can decouple the class from specific logging or argument processing implementations. This allows for better flexibility and easier testing of the class. 

<?php

class Logger {
    public function log($message) {
        echo $message . "\n";
    }
}

class ArgumentProcessor {
    public function processArguments($args) {
        return implode(', ', $args);
    }
}

class Application {
    private $logger;
    private $argumentProcessor;

    public function __construct(Logger $logger, ArgumentProcessor $argumentProcessor) {
        $this->logger = $logger;
        $this->argumentProcessor = $argumentProcessor;
    }

    public function run($args) {
        $processedArgs = $this->argumentProcessor->processArguments($args);
        $this->logger->log("Arguments processed: $processedArgs");
    }
}

$logger = new Logger();
$argumentProcessor = new ArgumentProcessor();
$application = new Application($logger, $argumentProcessor);
$application->run(['arg1', 'arg2', 'arg3']);

?>

Keywords

logging argument processing PHP application classes inheritance error types

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