The PHP variant of the driver requires PHP 5.4 or higher.
The driver requires » libbson and » libmongoc, and will use bundled versions of both libraries by default.
The driver requires » OpenSSL and will rely on PHP to find its headers (i.e. PHP_SETUP_OPENSSL). If the build process fails to find OpenSSL, check that the OpenSSL development package (e.g. libssl-dev) and » pkg-config are both installed.
» Cyrus SASL is an optional dependency and will be used if available.
I ran into this module requiring libsasl.dll available in the Windows Path. I thought that was just for the old driver, but apparently not. I'm running PHP 7.0.7 with Apache 2.4 (VC14), x64 thread-safe. I was working with version 1.2.5 of the MongoDB driver.