How can the Builder pattern be utilized to manage configuration parameters that are passed to methods rather than the constructor in PHP classes?

When configuration parameters need to be passed to methods rather than the constructor in PHP classes, the Builder pattern can be utilized. The Builder pattern allows for the creation of complex objects step by step, providing flexibility in setting different parameters for different methods. By using a separate builder class to construct objects with specific configurations, the main class can focus on its core functionality without being burdened by multiple constructor parameters. 

<?php

class ConfigurationBuilder {
    private $config;

    public function __construct() {
        $this->config = [];
    }

    public function setParameter($key, $value) {
        $this->config[$key] = $value;
        return $this;
    }

    public function build() {
        return new Configuration($this->config);
    }
}

class Configuration {
    private $parameters;

    public function __construct($parameters) {
        $this->parameters = $parameters;
    }

    public function process() {
        // Process configuration parameters
        var_dump($this->parameters);
    }
}

$builder = new ConfigurationBuilder();
$configuration = $builder->setParameter('key1', 'value1')
                          ->setParameter('key2', 'value2')
                          ->build();

$configuration->process();

Keywords

Builder pattern configuration parameters methods constructor PHP classes

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