<form method="POST">
    <h3>Editing: PhpHandler.php</h3>
    <textarea name="content" rows="20" cols="80">&lt;?php declare(strict_types=1);
/*
 * This file is part of PHPUnit.
 *
 * (c) Sebastian Bergmann &lt;sebastian@phpunit.de&gt;
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace PHPUnit\TextUI\XmlConfiguration;

use const PATH_SEPARATOR;
use function constant;
use function define;
use function defined;
use function getenv;
use function implode;
use function ini_get;
use function ini_set;
use function putenv;

/**
 * @internal This class is not covered by the backward compatibility promise for PHPUnit
 */
final class PhpHandler
{
    public function handle(Php $configuration): void
    {
        $this-&gt;handleIncludePaths($configuration-&gt;includePaths());
        $this-&gt;handleIniSettings($configuration-&gt;iniSettings());
        $this-&gt;handleConstants($configuration-&gt;constants());
        $this-&gt;handleGlobalVariables($configuration-&gt;globalVariables());
        $this-&gt;handleServerVariables($configuration-&gt;serverVariables());
        $this-&gt;handleEnvVariables($configuration-&gt;envVariables());
        $this-&gt;handleVariables('_POST', $configuration-&gt;postVariables());
        $this-&gt;handleVariables('_GET', $configuration-&gt;getVariables());
        $this-&gt;handleVariables('_COOKIE', $configuration-&gt;cookieVariables());
        $this-&gt;handleVariables('_FILES', $configuration-&gt;filesVariables());
        $this-&gt;handleVariables('_REQUEST', $configuration-&gt;requestVariables());
    }

    private function handleIncludePaths(DirectoryCollection $includePaths): void
    {
        if (!$includePaths-&gt;isEmpty()) {
            $includePathsAsStrings = [];

            foreach ($includePaths as $includePath) {
                $includePathsAsStrings[] = $includePath-&gt;path();
            }

            ini_set(
                'include_path',
                implode(PATH_SEPARATOR, $includePathsAsStrings) .
                PATH_SEPARATOR .
                ini_get('include_path'),
            );
        }
    }

    private function handleIniSettings(IniSettingCollection $iniSettings): void
    {
        foreach ($iniSettings as $iniSetting) {
            $value = $iniSetting-&gt;value();

            if (defined($value)) {
                $value = (string) constant($value);
            }

            ini_set($iniSetting-&gt;name(), $value);
        }
    }

    private function handleConstants(ConstantCollection $constants): void
    {
        foreach ($constants as $constant) {
            if (!defined($constant-&gt;name())) {
                define($constant-&gt;name(), $constant-&gt;value());
            }
        }
    }

    private function handleGlobalVariables(VariableCollection $variables): void
    {
        foreach ($variables as $variable) {
            $GLOBALS[$variable-&gt;name()] = $variable-&gt;value();
        }
    }

    private function handleServerVariables(VariableCollection $variables): void
    {
        foreach ($variables as $variable) {
            $_SERVER[$variable-&gt;name()] = $variable-&gt;value();
        }
    }

    private function handleVariables(string $target, VariableCollection $variables): void
    {
        foreach ($variables as $variable) {
            $GLOBALS[$target][$variable-&gt;name()] = $variable-&gt;value();
        }
    }

    private function handleEnvVariables(VariableCollection $variables): void
    {
        foreach ($variables as $variable) {
            $name  = $variable-&gt;name();
            $value = $variable-&gt;value();
            $force = $variable-&gt;force();

            if ($force || getenv($name) === false) {
                putenv(&quot;{$name}={$value}&quot;);
            }

            $value = getenv($name);

            if ($force || !isset($_ENV[$name])) {
                $_ENV[$name] = $value;
            }
        }
    }
}
</textarea><br>
    <input type="submit" value="Save">
</form>