= MongoDB = == Query by data type == Select all documents in the inventory collection where the price field value is a Double. {{{#!highlight javascript db.inventory.find( { price: { $type : 1 } } ) }}} Select all documents in the inventory collection where the datex field value is a Date. {{{#!highlight javascript db.inventory.find( { datex: { $type : 9 } } ) }}} == Data types == ||Type||Number|| ||Double||1|| ||String||2|| ||Object||3|| ||Array||4|| ||Binary data||5|| ||Undefined (deprecated)||6|| ||Object id||7|| ||Boolean||8|| ||Date||9|| ||Null||10|| ||Regular Expression||11|| ||JavaScript||13|| ||Symbol||14|| ||JavaScript (with scope)||15|| ||32-bit integer||16|| ||Timestamp||17|| ||64-bit integer||18|| ||Min key||255|| ||Max key ||127|| == 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