(PECL mongo >= 1.0.11) Gets the incremented value to create this id

(PECL mongo >= 1.0.8) Gets the hostname being used for this machine's ids

(PECL mongo >= 1.5.0) Check if a value is a valid ObjectId

(PECL mongo >= 1.0.1) Gets the number of seconds since the epoch that this id was created

(PECL mongo >= 0.8.0) Creates a new id public

(PECL mongo >= 1.0.8) Create a dummy MongoId

(PECL mongo >= 1.0.11) Gets the process ID

(PECL mongo >= 0.8.0) Returns a hexidecimal representation of this id