Gives the database a hint about the query
MongoCursor
PHP Manual

MongoCursor::hint

(PECL mongo >=0.9.0)

MongoCursor::hint — Gives the database a hint about the query

Description

public MongoCursor MongoCursor::hint ( array $key_pattern )

Parameters

key_pattern

Indexes to use for the query.

Return Values

Returns this cursor.

Errors/Exceptions

Throws MongoCursorException if this cursor has started iterating.

MongoCursor
PHP Manual
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