Description:

SASL is the Simple Authentication and Security Layer (as defined
by RFC 2222). It provides a system for adding plugable
authenticating support to connection-based protocols. The SASL
Extension for PHP makes the Cyrus SASL library functions available
to PHP. It aims to provide a 1-to-1 wrapper around the SASL
library to provide the greatest amount of implementation
flexibility. To that end, it is possible to build both a
client-side and server-side SASL implementation entirely in PHP.