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Home NoSQL Databases MongoDB How to create an index for MongoDB from PHP

How to create an index for MongoDB from PHP

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MongoDB logoMongoDB is a NoSQL database that can use indexes to speed particular ad-hoc searches. You can add an index to a particular MongoDB field very easily from PHP.

 

You can add an index easily with the ensureIndex() method on a collection object. To add a simply ascending index, just use this command:

 

$result = $myCollection->ensureIndex(array($myField=>1));

The value of 1 specifies an ascending index. For descending, use a -1 value:

$result = $myCollection->ensureIndex(array($myField=>-1));

You can specify a multi-key index by passing an multi-element array like this:

$result = $myCollection->ensureIndex(array($myField=>1,$mySecondField=>-1));

These commands will create an index if one doesn't exist and return a reference to the existing index if it is already setup on the collection.

 

 

 

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