MongoDB/PHP ..如何编写选择查询? [英] MongoDB/PHP.. How to write select queries?

问题描述

如何在mongo db中编写查找查询以选择某些值.例如

How to write find query in mongo db to select certain values. For example

IN MYSQL - SELECT * from things where id=3;
IN Mongo - thingscollection->find(array("_id" => $id))

假设MYSQL查询如下所示，

suppose if the MYSQL query looks like this,

SELECT name,age from things where id=3;

我想知道如何在PHP/MongoDB中编写查找查询以选择特定值?

I am wondering how to write find query in PHP/MongoDB to select specific values?

推荐答案

MySQL: SELECT name,age from things where id=3;  
Mongo: $db->things->find(array("id" => 3), array("name" => 1, "age" => 1));

您可能要使用mongo _id代替自己创建的id字段.

You may want to use the mongo _id instead of an own created id field.

有关php驱动程序的详细信息，请参见: http://php.net/manual /en/mongo.sqltomongo.php 仅将SQL链接到Mongo的另一个很好的链接是 http://rickosborne.org/download/SQL -to-MongoDB.pdf

For more information specifically about the php driver: http://php.net/manual/en/mongo.sqltomongo.php An other good link for just SQL to Mongo is http://rickosborne.org/download/SQL-to-MongoDB.pdf

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