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Tag: mongodb

Properly parse a Mongo cursor to PHP

When converting a MongoCursor to PHP I use this script. Which was presented here StackOverflowSO using the upper method, the structure is same but _id is whereas using the lower script which yields the below included result. Unfortunately, this results in the actual object being embedded into an array with th…

Purpose of Secondary Key

What is the purpose of the Secondary key? Say I have a table that logs down all the check-ins (similar to Foursquare), with columns id, user_id, location_id, post, time, and there can be millions of rows, many people have stated to use secondary keys to speed up the process. Why does this work? And should bot…