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Predefined Constants

The constants below are defined by this extension, and will only be available when the extension has either been compiled into PHP or dynamically loaded at runtime.

YAC_VERSION (string)
YAC_MAX_KEY_LEN (int)
Max length of a key could be, it is 48 bytes.
YAC_MAX_VALUE_RAW_LEN (int)
YAC_MAX_RAW_COMPRESSED_LEN (int)
YAC_SERIALIZER_PHP (int)
Use php serialize as serializer
YAC_SERIALIZER_JSON (int)
Use json as serializer(requrie --enable-json)
YAC_SERIALIZER_IGBINARY (int)
Use igbinary as serializer(require --enable-igbinary)
YAC_SERIALIZER_MSGPACK (int)
Use msgpack as serializer(require --enable-msgpack)
YAC_SERIALIZER (string)
Which serialzier is yac used

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