预定义常量

以下常量由本扩展模块定义，因此只有在本扩展模块被编译到 PHP 中，或者在运行时被动态加载后才有效。

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