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锟斤拷 PHP 5.4.0 锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟洁：

SPL:

• CallbackFilterIterator
• RecursiveCallbackFilterIterator

Reflection:

• ReflectionZendExtension

Json:

• JsonSerializable

Session:

• SessionHandler
• SessionHandlerInterface

Snmp:

• SNMP

Intl:

• Transliterator
• Spoofchecker