78 lines
2.5 KiB
PHP
78 lines
2.5 KiB
PHP
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Yaml;
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/**
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* Dumper dumps PHP variables to YAML strings.
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*
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* @author Fabien Potencier <fabien@symfony.com>
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*/
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class Dumper
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{
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/**
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* The amount of spaces to use for indentation of nested nodes.
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*
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* @var int
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*/
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protected $indentation = 4;
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/**
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* Sets the indentation.
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*
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* @param int $num The amount of spaces to use for indentation of nested nodes.
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*/
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public function setIndentation($num)
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{
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if ($num < 1) {
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throw new \InvalidArgumentException('The indentation must be greater than zero.');
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}
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$this->indentation = (int) $num;
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}
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/**
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* Dumps a PHP value to YAML.
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*
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* @param mixed $input The PHP value
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* @param int $inline The level where you switch to inline YAML
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* @param int $indent The level of indentation (used internally)
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* @param bool $exceptionOnInvalidType true if an exception must be thrown on invalid types (a PHP resource or object), false otherwise
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* @param bool $objectSupport true if object support is enabled, false otherwise
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*
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* @return string The YAML representation of the PHP value
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*/
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public function dump($input, $inline = 0, $indent = 0, $exceptionOnInvalidType = false, $objectSupport = false)
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{
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$output = '';
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$prefix = $indent ? str_repeat(' ', $indent) : '';
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if ($inline <= 0 || !is_array($input) || empty($input)) {
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$output .= $prefix.Inline::dump($input, $exceptionOnInvalidType, $objectSupport);
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} else {
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$isAHash = array_keys($input) !== range(0, count($input) - 1);
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foreach ($input as $key => $value) {
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$willBeInlined = $inline - 1 <= 0 || !is_array($value) || empty($value);
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$output .= sprintf('%s%s%s%s',
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$prefix,
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$isAHash ? Inline::dump($key, $exceptionOnInvalidType, $objectSupport).':' : '-',
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$willBeInlined ? ' ' : "\n",
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$this->dump($value, $inline - 1, $willBeInlined ? 0 : $indent + $this->indentation, $exceptionOnInvalidType, $objectSupport)
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).($willBeInlined ? "\n" : '');
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}
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}
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return $output;
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}
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}
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