PHP and MongoDB - The Definitive Guide to MongoDB - page 124

The result returned looks like this:

Array (
[value] => Array (
[Given Name] => Kenji
[Family Name] => Kitahara
[Address] => Array (
[Street] => 149 Bartlett Avenue
[Place] => Southfield
[Postal Code] => MI 48075
[Country] => USA
)
[E-Mail] => Array (
[0] => [e-mail]
[1] => [e-mail]
)
[Phone] => 248-510-1562
[Age] => 34
[_id] => MongoId Object ( )
[Category] => Work
)
[ok] => 1
)

The following example shows how to use the remove and sort parameters:

// Connect to the database
$c = new MongoClient();
// Specify the database and collection in which to work
$collection = $c->contacts->people;
// Specify the search criteria
$criteria = array("Category" => "Work");
// Specify the options
$options = array("sort" => array("Age" => -1), "remove" => true);
// Perform a findAndModify()
$collection->findAndModify($criteria,null,null,$options);

Deleting Data
You can use the remove() function to remove a document like the one in the preceding example from the MongoDB
shell. The PHP driver also includes a remove() function you can use to remove data. The PHP version of this function
takes two parameters: one contains the description of the record or records to remove, while the other specifies
additional options governing the removal process.
There are seven options available:

•

justOne : If set to true, at most only one record matching the criteria must be removed.

•

fsync : If set to true , this Boolean option causes the data to be synced to disk before returning
a success. If this option is set to true , then it's implied that w is set to 0 , even if it's set
otherwise.