(PECL mongo >=1.5.0)
MongoCommandCursor::__construct — Create a new command cursor
$connection
, string $ns
[, array $command = array()
] )In many instances, you do not have to create a MongoCommandCursor manually, but instead one of the helper functions such as MongoCollection::aggregateCursor() and MongoCollection::parallelCollectionScan(). However, if the server adds new commands that can return cursors, then manually creating MongoCommandCursor objects is required. However, it might be easier to use the MongoCommandCursor::createFromDocument() instead.
connection
Database connection.
ns
Full name of database and collection.
command
Database command.
Returns the new cursor.
Example #1 MongoCommandCursor() example
<?php
$m = new MongoClient;
$d = $m->demo;
// setup the pipeline
$pipeline = [
[ '$group' => [
'_id' => '$country_code',
'timezones' => [ '$addToSet' => '$timezone' ]
] ],
[ '$sort' => [ '_id' => 1 ] ],
];
// run the command, and return a MongoCommandCursor object
$r = $d->commandCursor(
$m, // MongoClient object
'demo.cities', // namespace
[
'aggregate' => 'cities',
'pipeline' => $pipeline,
]
);
foreach($r as $document) {
…
}
?>