core/Updater/Migration/Config/Set.php

<?php

/**
 * Matomo - free/libre analytics platform
 *
 * @link    https://matomo.org
 * @license https://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
 */

namespace Piwik\Updater\Migration\Config;

use Piwik\Config;
use Piwik\Updater\Migration;

/**
 * Sets the given configuration to Matomo config value
 */
class Set extends Migration
{
    /**
     * @var string
     */
    private $section;

    /**
     * @var string
     */
    private $key;

    /**
     * @var scalar|scalar[]
     */
    private $value;


    public function __construct($section, $key, $value)
    {
        $this->section = $section;
        $this->key = $key;
        $this->value = $value;
    }

    public function __toString()
    {
        $domain = Config::getLocalConfigPath() == Config::getDefaultLocalConfigPath() ? '' : Config::getHostname();
        $domainArg = !empty($domain) ? "--matomo-domain=\"$domain\" " : '';

        if (is_array($this->value)) {
            $assignment = sprintf('%s.%s=%s', $this->section, $this->key, json_encode($this->value));
            $assignment = str_replace("'", "'\"'\"'", $assignment);
            return sprintf("./console %sconfig:set '%s'", $domainArg, $assignment);
        }

        return sprintf('./console %sconfig:set --section="%s" --key="%s" --value="%s"', $domainArg, $this->section, $this->key, $this->value);
    }

    public function exec()
    {
        $config = Config::getInstance();
        $config->{$this->section}[$this->key] = $this->value;
        $config->forceSave();
    }
}