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symfony/src/Symfony/Component/VarExporter
Nicolas Grekas f8ccc8105c Merge branch '4.4'
* 4.4: (43 commits)
  [PhpunitBridge] Read environment variable from superglobals
  [Bridge/PhpUnit] Fix PHP5.5 compat
  [PhpUnitBridge] More accurate grouping
  fixed CS
  [Form] remove comment about to-be-removed method as it is used in master by ButtonBuilder
  Extract unrecoverable exception to interface
  [FrameworkBundle] Fix calling Client::getProfile() before sending a request
  Fix type error
  [Security/Core] require libsodium >= 1.0.14
  [Workflow] re-add workflow.definition tag to workflow services
  [Security/Core] Don't use ParagonIE_Sodium_Compat
  revert #30525 due to performance penalty
  collect called listeners information only once
  [Lock] fix missing inherit docs in RedisStore
  [Messenger] fix retrying handlers using DoctrineTransactionMiddleware
  [Mailgun Mailer] fixed issue when using html body
  [Messenger] make all stamps final and mark stamp not meant to be sent
  [HttpClient] fix timing measurements with NativeHttpClient
  add return type declaration
  use proper return types in ErrorHandler and ArgumentResolver
  ...
2019-06-26 11:36:22 +02:00
..
Exception [VarExporter] throw component-specific exceptions 2018-09-10 10:23:43 +02:00
Internal fixed CS 2019-06-13 12:57:15 +02:00
Tests Replace @return annotation by return type in final classes 2019-06-23 00:57:33 +02:00
.gitignore [VarExporter] a new component to serialize values to plain PHP code 2018-08-27 18:34:07 +02:00
CHANGELOG.md [VarExporter] a new component to serialize values to plain PHP code 2018-08-27 18:34:07 +02:00
composer.json Bump deps to ^4.4|^5.0 for Symfony 5.0 2019-05-28 20:01:02 +02:00
Instantiator.php Replace @return annotation by return type in final classes 2019-06-23 00:57:33 +02:00
LICENSE update years in license files 2019-01-03 10:09:06 +01:00
phpunit.xml.dist Merge branch '4.1' 2018-11-11 20:52:12 +01:00
README.md Fix link to documentation 2019-06-22 10:17:17 +02:00
VarExporter.php [VarExporter] support PHP7.4 __serialize & __unserialize 2019-04-09 22:09:28 +02:00

VarExporter Component

The VarExporter component allows exporting any serializable PHP data structure to plain PHP code. While doing so, it preserves all the semantics associated with the serialization mechanism of PHP (__wakeup, __sleep, Serializable, __serialize, __unserialize).

It also provides an instantiator that allows creating and populating objects without calling their constructor nor any other methods.

The reason to use this component vs serialize() or igbinary is performance: thanks to OPcache, the resulting code is significantly faster and more memory efficient than using unserialize() or igbinary_unserialize().

Unlike var_export(), this works on any serializable PHP value.

It also provides a few improvements over var_export()/serialize():

  • the output is PSR-2 compatible;
  • the output can be re-indented without messing up with \r or \n in the data
  • missing classes throw a ClassNotFoundException instead of being unserialized to PHP_Incomplete_Class objects;
  • references involving SplObjectStorage, ArrayObject or ArrayIterator instances are preserved;
  • Reflection*, IteratorIterator and RecursiveIteratorIterator classes throw an exception when being serialized (their unserialized version is broken anyway, see https://bugs.php.net/76737).

Resources