- Add support to dump int keys as strings by using the
Yaml::DUMP_NUMERIC_KEY_AS_STRING
flag
- Add support for
!php/enum
and!php/enum *->value
- Deprecate the
!php/const:
tag in key which will be replaced by the!php/const
tag (without the colon) since 3.4
- In cases where it will likely improve readability, strings containing single quotes will be double-quoted
- Add new
lint:yaml dirname --exclude=/dirname/foo.yaml --exclude=/dirname/bar.yaml
option to exclude one or more specific files from multiple file list - Allow negatable for the parse tags option with
--no-parse-tags
- Added
github
format support & autodetection to render errors as annotations when running the YAML linter command in a Github Action environment.
-
Added support for parsing numbers prefixed with
0o
as octal numbers. -
Deprecated support for parsing numbers starting with
0
as octal numbers. They will be parsed as strings as of Symfony 6.0. Prefix numbers with0o
so that they are parsed as octal numbers.Before:
Yaml::parse('072');
After:
Yaml::parse('0o72');
-
Added
yaml-lint
binary. -
Deprecated using the
!php/object
and!php/const
tags without a value.
- Removed support for mappings inside multi-line strings.
- removed support for implicit STDIN usage in the
lint:yaml
command, uselint:yaml -
(append a dash) instead to make it explicit.
- Added support for parsing the inline notation spanning multiple lines.
- Added support to dump
null
as~
by using theYaml::DUMP_NULL_AS_TILDE
flag. - deprecated accepting STDIN implicitly when using the
lint:yaml
command, uselint:yaml -
(append a dash) instead to make it explicit.
- Using a mapping inside a multi-line string is deprecated and will throw a
ParseException
in 5.0.
- added support for multiple files or directories in
LintCommand
-
The behavior of the non-specific tag
!
is changed and now forces non-evaluating your values. -
complex mappings will throw a
ParseException
-
support for the comma as a group separator for floats has been dropped, use the underscore instead
-
support for the
!!php/object
tag has been dropped, use the!php/object
tag instead -
duplicate mapping keys throw a
ParseException
-
non-string mapping keys throw a
ParseException
, use theYaml::PARSE_KEYS_AS_STRINGS
flag to cast them to strings -
%
at the beginning of an unquoted string throw aParseException
-
mappings with a colon (
:
) that is not followed by a whitespace throw aParseException
-
the
Dumper::setIndentation()
method has been removed -
being able to pass boolean options to the
Yaml::parse()
,Yaml::dump()
,Parser::parse()
, andDumper::dump()
methods to configure the behavior of the parser and dumper is no longer supported, pass bitmask flags instead -
the constructor arguments of the
Parser
class have been removed -
the
Inline
class is internal and no longer part of the BC promise -
removed support for the
!str
tag, use the!!str
tag instead -
added support for tagged scalars.
Yaml::parse('!foo bar', Yaml::PARSE_CUSTOM_TAGS); // returns TaggedValue('foo', 'bar');
-
added support for parsing YAML files using the
Yaml::parseFile()
orParser::parseFile()
method -
the
Dumper
,Parser
, andYaml
classes are marked as final -
Deprecated the
!php/object:
tag which will be replaced by the!php/object
tag (without the colon) in 4.0. -
Deprecated the
!php/const:
tag which will be replaced by the!php/const
tag (without the colon) in 4.0. -
Support for the
!str
tag is deprecated, use the!!str
tag instead. -
Deprecated using the non-specific tag
!
as its behavior will change in 4.0. It will force non-evaluating your values in 4.0. Use plain integers or!!float
instead.
-
Starting an unquoted string with a question mark followed by a space is deprecated and will throw a
ParseException
in Symfony 4.0. -
Deprecated support for implicitly parsing non-string mapping keys as strings. Mapping keys that are no strings will lead to a
ParseException
in Symfony 4.0. Use quotes to opt-in for keys to be parsed as strings.Before:
$yaml = <<<YAML null: null key true: boolean true 2.0: float key YAML; Yaml::parse($yaml);
After:
$yaml = <<<YAML "null": null key "true": boolean true "2.0": float key YAML; Yaml::parse($yaml);
-
Omitted mapping values will be parsed as
null
. -
Omitting the key of a mapping is deprecated and will throw a
ParseException
in Symfony 4.0. -
Added support for dumping empty PHP arrays as YAML sequences:
Yaml::dump([], 0, 0, Yaml::DUMP_EMPTY_ARRAY_AS_SEQUENCE);
-
Mappings with a colon (
:
) that is not followed by a whitespace are deprecated when the mapping key is not quoted and will lead to aParseException
in Symfony 4.0 (e.g.foo:bar
must befoo: bar
). -
Added support for parsing PHP constants:
Yaml::parse('!php/const:PHP_INT_MAX', Yaml::PARSE_CONSTANT);
-
Support for silently ignoring duplicate mapping keys in YAML has been deprecated and will lead to a
ParseException
in Symfony 4.0.
-
Added support to dump
stdClass
andArrayAccess
objects as YAML mappings through theYaml::DUMP_OBJECT_AS_MAP
flag. -
Strings that are not UTF-8 encoded will be dumped as base64 encoded binary data.
-
Added support for dumping multi line strings as literal blocks.
-
Added support for parsing base64 encoded binary data when they are tagged with the
!!binary
tag. -
Added support for parsing timestamps as
\DateTime
objects:Yaml::parse('2001-12-15 21:59:43.10 -5', Yaml::PARSE_DATETIME);
-
\DateTime
and\DateTimeImmutable
objects are dumped as YAML timestamps. -
Deprecated usage of
%
at the beginning of an unquoted string. -
Added support for customizing the YAML parser behavior through an optional bit field:
Yaml::parse('{ "foo": "bar", "fiz": "cat" }', Yaml::PARSE_EXCEPTION_ON_INVALID_TYPE | Yaml::PARSE_OBJECT | Yaml::PARSE_OBJECT_FOR_MAP);
-
Added support for customizing the dumped YAML string through an optional bit field:
Yaml::dump(['foo' => new A(), 'bar' => 1], 0, 0, Yaml::DUMP_EXCEPTION_ON_INVALID_TYPE | Yaml::DUMP_OBJECT);
- Yaml::parse() now throws an exception when a blackslash is not escaped in double-quoted strings
-
Deprecated usage of a colon in an unquoted mapping value
-
Deprecated usage of @, `, | and > at the beginning of an unquoted string
-
When surrounding strings with double-quotes, you must now escape
\
characters. Not escaping those characters (when surrounded by double-quotes) is deprecated.Before:
class: "Foo\Var"
After:
class: "Foo\\Var"
- Yaml::parse() does not evaluate loaded files as PHP files by default anymore (call Yaml::enablePhpParsing() to get back the old behavior)