Mongo
PHP Manual

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.

Mongo::DEFAULT_HOST (string)
"localhost"
Mongo::DEFAULT_PORT (int)
27017
MongoDB::PROFILING_OFF (int)
Turn off database profiling
MongoDB::PROFILING_SLOW (int)
Turn on database profiling for slow operations
MongoDB::PROFILING_ON (int)
Turn on database profiling for all operations
MongoUtil::LT (string)
Less than
MongoUtil::LTE (string)
Less than or equal to
MongoUtil::GT (string)
Greater than
MongoUtil::GTE (string)
Greater than or equal to
MongoUtil::IN (string)
In
MongoUtil::NE (string)
Not equal
MongoUtil::ASC (int)
Ascending
MongoUtil::DESC (int)
Descending
MongoUtil::BIN_ARRAY (int)
Default binary type: an array of bytes
MongoUtil::BIN_UUID (int)
Universal unique id
MongoUtil::BIN_MD5 (int)
MD5 type
MongoUtil::BIN_CUSTOM (int)
User-defined binary type

Mongo
PHP Manual