da0ef24744
This PR was merged into the 4.2-dev branch.
Discussion
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[VarExporter] a new component to serialize values to plain PHP code
| Q | A
| ------------- | ---
| Branch? | master
| Bug fix? | no
| New feature? | yes
| BC breaks? | no
| Deprecations? | no
| Tests pass? | yes
| Fixed tickets | -
| License | MIT
| Doc PR | -
This PR proposes moving what is currently the `PhpMarshaller` class in the Cache component to a separate component.
This component would provide only one public static method:
`VarExporter::export($value, bool &$isStaticValue = null): string`.
This method returns `$value` serialized as plain PHP code. Running this code creates the same exact data structure that `$value` contained. This is exactly like `serialize()` and `unserialize()`, from which all semantics are preserved (`__sleep`, `__wakeup` and `Serializable`).
The reason to use this method *vs* `serialize()` or even 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 any `\r` or `\n` in the data
- missing classes throw a `ReflectionException` instead of being unserialized to a `PHP_Incomplete_Class` object
- 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.)
Commits
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| .. | ||
| Asset | ||
| BrowserKit | ||
| Cache | ||
| Config | ||
| Console | ||
| CssSelector | ||
| Debug | ||
| DependencyInjection | ||
| DomCrawler | ||
| Dotenv | ||
| EventDispatcher | ||
| ExpressionLanguage | ||
| Filesystem | ||
| Finder | ||
| Form | ||
| HttpFoundation | ||
| HttpKernel | ||
| Inflector | ||
| Intl | ||
| Ldap | ||
| Lock | ||
| Messenger | ||
| OptionsResolver | ||
| Process | ||
| PropertyAccess | ||
| PropertyInfo | ||
| Routing | ||
| Security | ||
| Serializer | ||
| Stopwatch | ||
| Templating | ||
| Translation | ||
| Validator | ||
| VarDumper | ||
| VarExporter | ||
| WebLink | ||
| Workflow | ||
| Yaml | ||