VarDumper.php

<?php

namespace Drupal\devel\Plugin\Devel\Dumper;

use Drupal\devel\DevelDumperBase;
use Symfony\Component\VarDumper\Cloner\VarCloner;
use Symfony\Component\VarDumper\Dumper\CliDumper;
use Symfony\Component\VarDumper\Dumper\HtmlDumper;

/**
 * Provides a Symfony VarDumper dumper plugin.
 *
 * @DevelDumper(
 *   id = "var_dumper",
 *   label = @Translation("Symfony var-dumper"),
 *   description = @Translation("Wrapper for <a href='https://github.com/symfony/var-dumper'>Symfony var-dumper</a> debugging tool."),
 * )
 */
class VarDumper extends DevelDumperBase {
    
    /**
     * {@inheritdoc}
     */
    public function export($input, $name = NULL) {
        $cloner = new VarCloner();
        $dumper = 'cli' === PHP_SAPI ? new CliDumper() : new HtmlDumper();
        $output = fopen('php://memory', 'r+b');
        $dumper->dump($cloner->cloneVar($input), $output);
        $output = stream_get_contents($output, -1, 0);
        if ($name) {
            $output = $name . ' => ' . $output;
        }
        return $this->setSafeMarkup($output);
    }
    
    /**
     * {@inheritdoc}
     */
    public static function checkRequirements() {
        return class_exists('Symfony\\Component\\VarDumper\\Cloner\\VarCloner', TRUE);
    }

}