Zend_Serializer adapters create a bridge for different methods of
serializing with very little effort.
Every adapter has different pros and cons. In some cases, not every PHP
datatype (e.g., objects) can be converted to a string representation. In most such cases,
the type will be converted to a similar type that is serializable -- as an example,
PHP objects will often be cast to arrays. If this fails, a
Zend_Serializer_Exception will be thrown.
Below is a list of available adapters.