MongoDB

Query by data type

Select all documents in the inventory collection where the price field value is a Double.

   1 db.inventory.find( { price: { $type : 1 } } )

Select all documents in the inventory collection where the datex field value is a Date.

   1 db.inventory.find( { datex: { $type : 9 } } )

Data types

PHP driver

Manual install

• cd /tmp

• wget http://pecl.php.net/get/mongo-1.4.3.tgz

• tar xvzf mongo-1.4.3.tgz
• yum install php-devel #on CentOS
• phpize
• ./configure
• make
• make install

• add extension=mongo.so to /etc/php.ini

• In CentOS 64 bit the mongo.so should be located in /usr/lib64/php/modules/mongo.so