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(mongodb >=1.0.0)
MongoDB\Driver\Cursor::setTypeMap — Sets a type map to use for BSON unserialization
$typemap 
   )Sets the type map configuration to use when unserializing the BSON results into PHP values.
typeMap ( array )Type map configuration.
没有返回值。
Example #1 MongoDB\Driver\Cursor::setTypeMap() example
  <?php
$manager  = new  MongoDB \ Driver \ Manager ( "mongodb://localhost:27017" );
 $bulk  = new  MongoDB \ Driver \ BulkWrite ;
 $id  =  $bulk -> insert ([ 'x'  =>  1 ]);
 $manager -> executeBulkWrite ( 'db.collection' ,  $bulk );
 $query  = new  MongoDB \ Driver \ Query ([ '_id'  =>  $id ]);
 $cursor  =  $manager -> executeQuery ( 'db.collection' ,  $query );
 $cursor -> setTypeMap ([ 'root'  =>  'array' ]);
foreach ( $cursor  as  $document ) {
     var_dump ( $document );
}
 ?>   以上例程的输出类似于:
array(2) {
  ["_id"]=>
  object(MongoDB\BSON\ObjectID)#6 (1) {
    ["oid"]=>
    string(24) "56424fb76118fd3267180741"
  }
  ["x"]=>
  int(1)
}