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symfony/src/Symfony/Component/VarExporter
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Nicolas Grekas 62a4559619 Merge branch '4.4' into 5.1 
* 4.4:
  [Debug] fix test
  consistently use same types for strict comparisons
  [PhpUnitBridge] Skip internal classes in CoverageListenerTrait
  [VarExporter] unserialize() might throw an Exception on php 8.
  [ErrorHandler] Parse "x not found" errors correctly on php 8.
  Prevent parsing invalid octal digits as octal numbers
  remove unnecessary check for  existing request
  [DI] fix ContainerBuilder on PHP8
  [Console] Make sure $maxAttempts is an int or null.
  [VarDumper] Fix caster for invalid SplFileInfo objects on php 8.
  [Intl] Skip test cases that produce a TypeError on php 8.
  [PhpUnitBridge] Adjust output parsing for PHPUnit 9.3.
  [PhpUnitBridge] CoverageListenerTrait update for PHPUnit 8.5/9.x
  add bosnian (bs) translation
  [Debug] Parse "x not found" errors correctly on php 8.
2020-09-08 16:19:54 +02:00
..
Exception [VarExporter] unserialize() might throw an Exception on php 8. 2020-09-07 23:10:21 +02:00
Internal Merge branch '4.4' into 5.1 2020-09-08 16:19:54 +02:00
Tests Merge branch '4.4' into 5.0 2020-06-07 17:38:39 +02:00
.gitattributes add missing gitattributes for phpunit-bridge 2020-03-27 17:54:36 +01:00
.gitignore [VarExporter] a new component to serialize values to plain PHP code 2018-08-27 18:34:07 +02:00
CHANGELOG.md [HttpKernel] allow cache warmers to add to the list of preloaded classes and files 2020-04-04 11:52:45 +02:00
composer.json Use ">=" for the "php" requirement 2020-07-05 11:39:30 +02:00
Instantiator.php Replace @return annotation by return type in final classes 2019-06-23 00:57:33 +02:00
LICENSE Update year in license files 2020-01-01 12:51:43 +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 [HttpKernel] allow cache warmers to add to the list of preloaded classes and files 2020-04-04 11:52:45 +02:00

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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