mongo-php-tutorial-php-multi-php-query-4

  • Tutorial

    • Getting A Set of Documents With a Query

  • Getting A Set of Documents With a Query

    • Getting A Set of Documents With a Query

    Getting A Set of Documents With a Query

    We can use the query to get a set of documents from
    our collection. For example, if we wanted to get all documents
    where “i” > 50, we could write:

    <?php
    $connection     = new MongoClient();
    $collection = $connection->database->collectionName;

    $query = array( "i" => array( '$gt' => 50 ) ); //note the single quotes around '$gt'
    $cursor = $collection->find( $query );

    while ( $cursor->hasNext() )
    {
            var_dump( $cursor->getNext() );
    }
    ?>

    which should print the documents where “i” >
    50. We could also get a range, say 20 < i <=
    30    :

    <?php
$connection = new MongoClient();
$collection = $connection->database->collectionName;

$query = array( 'i' => array( '$gt' => 20, "\$lte" => 30 ) );
$cursor = $collection->find( $query );

while ( $cursor->hasNext() )
{
    var_dump( $cursor->getNext() );
}
?>

    Remember to always escape the $-symbol or use
    single quotes. Otherwise PHP will interpret it to be the variable
    $gt.