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Igbinary is Open Source Software released by Sulake Dynamoid Oy. It's a drop-in replacement for the standard PHP serializer. Instead of time and space consuming textual representation, igbinary stores PHP data structures in a compact binary form. Savings are significant when using memcached or similar memory based storages for serialized data.

You need the igbinary PHP extension installed on your system in order to use this adapter.

There adapter takes no configuration options.

Zend Framework