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<?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;
use Symfony\Component\Yaml\Exception\ParseException;
/**
* Yaml offers convenience methods to load and dump YAML.
*
* @author Fabien Potencier <fabien@symfony.com>
*
* @final since version 3.4
*/
class Yaml
{
const DUMP_OBJECT = 1;
const PARSE_EXCEPTION_ON_INVALID_TYPE = 2;
const PARSE_OBJECT = 4;
const PARSE_OBJECT_FOR_MAP = 8;
const DUMP_EXCEPTION_ON_INVALID_TYPE = 16;
const PARSE_DATETIME = 32;
const DUMP_OBJECT_AS_MAP = 64;
const DUMP_MULTI_LINE_LITERAL_BLOCK = 128;
const PARSE_CONSTANT = 256;
const PARSE_CUSTOM_TAGS = 512;
const DUMP_EMPTY_ARRAY_AS_SEQUENCE = 1024;
/**
* Parses a YAML file into a PHP value.
*
* Usage:
* <code>
* $array = Yaml::parseFile('config.yml');
* print_r($array);
* </code>
*
* @param string $filename The path to the YAML file to be parsed
* @param int $flags A bit field of PARSE_* constants to customize the YAML parser behavior
*
* @return mixed The YAML converted to a PHP value
*
* @throws ParseException If the file could not be read or the YAML is not valid
*/
public static function parseFile(string $filename, int $flags = 0)
{
$yaml = new Parser();
return $yaml->parseFile($filename, $flags);
}
/**
* Parses YAML into a PHP value.
*
* Usage:
* <code>
* $array = Yaml::parse(file_get_contents('config.yml'));
* print_r($array);
* </code>
*
* @param string $input A string containing YAML
* @param int $flags A bit field of PARSE_* constants to customize the YAML parser behavior
*
* @return mixed The YAML converted to a PHP value
*
* @throws ParseException If the YAML is not valid
*/
public static function parse(string $input, int $flags = 0)
{
$yaml = new Parser();
return $yaml->parse($input, $flags);
}
/**
* Dumps a PHP value to a YAML string.
*
* The dump method, when supplied with an array, will do its best
* to convert the array into friendly YAML.
*
* @param mixed $input The PHP value
* @param int $inline The level where you switch to inline YAML
* @param int $indent The amount of spaces to use for indentation of nested nodes
* @param int $flags A bit field of DUMP_* constants to customize the dumped YAML string
*
* @return string A YAML string representing the original PHP value
*/
public static function dump($input, int $inline = 2, int $indent = 4, int $flags = 0): string
{
$yaml = new Dumper($indent);
return $yaml->dump($input, $inline, 0, $flags);
}
}