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PHP Manual Appendices Migrating from PHP 5.3.x to PHP 5.4.x New Classes and Interfaces
Migrating from PHP 5.3.x to PHP 5.4.x What has changed in PHP 5.4.x Backward Incompatible Changes New features Changes in SAPI modules Deprecated features in PHP 5.4.x Changed Functions New Functions New Classes and Interfaces New Methods Removed Extensions Other changes to extensions New Global Constants Changes to INI file handling Other changes
  • New Functions
  • New Methods

New Classes and Interfaces

The following classes were introduced in PHP 5.4.0:

SPL:

  • CallbackFilterIterator
  • RecursiveCallbackFilterIterator

Reflection:

  • ReflectionZendExtension

Json:

  • JsonSerializable

Session:

  • SessionHandler
  • SessionHandlerInterface

Snmp:

  • SNMP

Intl:

  • Transliterator
  • Spoofchecker
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