<?php

/*

 * This file is part of the Symfony package.

 *

 * (c) Fabien Potencier <fabien@symfony.com>

 *

 * For the full copyright and license information, please view the LICENSE

 * file that was distributed with this source code.

 */

namespace Symfony\Component\Yaml;

/**

 * Dumper dumps PHP variables to YAML strings.

 *

 * @author Fabien Potencier <fabien@symfony.com>

 */

class Dumper

{

    /**

     * Dumps a PHP value to YAML.

     *

     * @param  mixed   $input  The PHP value

     * @param  integer $inline The level where you switch to inline YAML

     * @param  integer $indent The level of indentation (used internally)

     *

     * @return string  The YAML representation of the PHP value

     */

    public function dump($input, $inline = 0, $indent = 0)

    {

        $output = '';

        $prefix = $indent ? str_repeat(' ', $indent) : '';

        if ($inline <= 0 || !is_array($input) || empty($input)) {

            $output .= $prefix.Inline::dump($input);

        } else {

            $isAHash = array_keys($input) !== range(0, count($input) - 1);

            foreach ($input as $key => $value) {

                $willBeInlined = $inline - 1 <= 0 || !is_array($value) || empty($value);

                $output .= sprintf('%s%s%s%s',

                    $prefix,

                    $isAHash ? Inline::dump($key).':' : '-',

                    $willBeInlined ? ' ' : "\n",

                    $this->dump($value, $inline - 1, $willBeInlined ? 0 : $indent + 2)

                ).($willBeInlined ? "\n" : '');

            }

        }

        return $output;

    }

}