4 * This file is part of the Symfony package.
6 * (c) Fabien Potencier <fabien@symfony.com>
8 * For the full copyright and license information, please view the LICENSE
9 * file that was distributed with this source code.
12 namespace Symfony\Component\Yaml;
14 use Symfony\Component\Yaml\Exception\ParseException;
17 * Yaml offers convenience methods to load and dump YAML.
19 * @author Fabien Potencier <fabien@symfony.com>
21 * @final since version 3.4
25 const DUMP_OBJECT = 1;
26 const PARSE_EXCEPTION_ON_INVALID_TYPE = 2;
27 const PARSE_OBJECT = 4;
28 const PARSE_OBJECT_FOR_MAP = 8;
29 const DUMP_EXCEPTION_ON_INVALID_TYPE = 16;
30 const PARSE_DATETIME = 32;
31 const DUMP_OBJECT_AS_MAP = 64;
32 const DUMP_MULTI_LINE_LITERAL_BLOCK = 128;
33 const PARSE_CONSTANT = 256;
34 const PARSE_CUSTOM_TAGS = 512;
35 const DUMP_EMPTY_ARRAY_AS_SEQUENCE = 1024;
38 * @deprecated since version 3.4, to be removed in 4.0. Quote your evaluable keys instead.
40 const PARSE_KEYS_AS_STRINGS = 2048;
43 * Parses a YAML file into a PHP value.
47 * $array = Yaml::parseFile('config.yml');
50 * @param string $filename The path to the YAML file to be parsed
51 * @param int $flags A bit field of PARSE_* constants to customize the YAML parser behavior
53 * @return mixed The YAML converted to a PHP value
55 * @throws ParseException If the file could not be read or the YAML is not valid
57 public static function parseFile($filename, $flags = 0)
61 return $yaml->parseFile($filename, $flags);
65 * Parses YAML into a PHP value.
69 * $array = Yaml::parse(file_get_contents('config.yml'));
73 * @param string $input A string containing YAML
74 * @param int $flags A bit field of PARSE_* constants to customize the YAML parser behavior
76 * @return mixed The YAML converted to a PHP value
78 * @throws ParseException If the YAML is not valid
80 public static function parse($input, $flags = 0)
82 if (\is_bool($flags)) {
83 @trigger_error('Passing a boolean flag to toggle exception handling is deprecated since Symfony 3.1 and will be removed in 4.0. Use the PARSE_EXCEPTION_ON_INVALID_TYPE flag instead.', E_USER_DEPRECATED);
86 $flags = self::PARSE_EXCEPTION_ON_INVALID_TYPE;
92 if (\func_num_args() >= 3) {
93 @trigger_error('Passing a boolean flag to toggle object support is deprecated since Symfony 3.1 and will be removed in 4.0. Use the PARSE_OBJECT flag instead.', E_USER_DEPRECATED);
95 if (func_get_arg(2)) {
96 $flags |= self::PARSE_OBJECT;
100 if (\func_num_args() >= 4) {
101 @trigger_error('Passing a boolean flag to toggle object for map support is deprecated since Symfony 3.1 and will be removed in 4.0. Use the Yaml::PARSE_OBJECT_FOR_MAP flag instead.', E_USER_DEPRECATED);
103 if (func_get_arg(3)) {
104 $flags |= self::PARSE_OBJECT_FOR_MAP;
108 $yaml = new Parser();
110 return $yaml->parse($input, $flags);
114 * Dumps a PHP value to a YAML string.
116 * The dump method, when supplied with an array, will do its best
117 * to convert the array into friendly YAML.
119 * @param mixed $input The PHP value
120 * @param int $inline The level where you switch to inline YAML
121 * @param int $indent The amount of spaces to use for indentation of nested nodes
122 * @param int $flags A bit field of DUMP_* constants to customize the dumped YAML string
124 * @return string A YAML string representing the original PHP value
126 public static function dump($input, $inline = 2, $indent = 4, $flags = 0)
128 if (\is_bool($flags)) {
129 @trigger_error('Passing a boolean flag to toggle exception handling is deprecated since Symfony 3.1 and will be removed in 4.0. Use the DUMP_EXCEPTION_ON_INVALID_TYPE flag instead.', E_USER_DEPRECATED);
132 $flags = self::DUMP_EXCEPTION_ON_INVALID_TYPE;
138 if (\func_num_args() >= 5) {
139 @trigger_error('Passing a boolean flag to toggle object support is deprecated since Symfony 3.1 and will be removed in 4.0. Use the DUMP_OBJECT flag instead.', E_USER_DEPRECATED);
141 if (func_get_arg(4)) {
142 $flags |= self::DUMP_OBJECT;
146 $yaml = new Dumper($indent);
148 return $yaml->dump($input, $inline, 0, $flags);