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symfony/src/Symfony/Component/VarExporter
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Nicolas Grekas e9f0cfe9db Merge branch '5.0' 
* 5.0: (31 commits)
  [HttpClient] NativeHttpClient should not send >1.1 protocol version
  [HttpClient] fix support for non-blocking resource streams
  [Mailer] Make sure you can pass custom headers to Mailgun
  [Mailer] Remove line breaks in email attachment content
  Update links to documentation
  [Validator] Add the missing translations for the Arabic (ar) locale
  ensure to expect no validation for the right reasons
  [Security-Guard] fixed 35203 missing name tag in param docblock
  [HttpClient] fix casting responses to PHP streams
  [PhpUnitBridge] Add test case for @expectedDeprecation annotation
  [PhpUnitBridge][SymfonyTestsListenerTrait] Remove $testsWithWarnings stack
  [FrameworkBundle] Fix getUser() phpdoc in AbstractController
  [Mailer] Fix addresses management in Sendgrid API payload
  [Mailer][MailchimpBridge] Fix missing attachments when sending via Mandrill API
  [Mailer][MailchimpBridge] Fix incorrect sender address when sender has name
  [HttpClient] fix capturing SSL certificates with NativeHttpClient
  Update year in license files
  Update year in license files
  [TwigBridge][Form] Added missing help messages in form themes
  Update year in license files
  ...
2020-01-04 15:20:45 +01:00
..
Exception
Internal Merge branch '4.4' 2019-12-01 09:49:37 +01:00
Tests Merge branch '4.4' 2019-11-13 08:42:48 +01:00
.gitattributes Add .gitignore to .gitattributes 2019-10-12 01:35:04 +01:00
.gitignore
CHANGELOG.md
composer.json Merge branch '5.0' 2019-11-21 08:02:52 +01:00
Instantiator.php
LICENSE Update year in license files 2020-01-01 12:51:43 +01:00
phpunit.xml.dist
README.md
VarExporter.php

README.md

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).

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