(PECL mongo >= 0.8.1)
MongoBinData::__toString — The string representation of this binary data object
This extension that defines this method is deprecated. Instead, the MongoDB extension should be used. Alternatives to this method include:
- MongoDB\BSON\Binary::getData()
This function has no parameters.
   Returns the string "<Mongo Binary Data>".  To access the contents of a 
   MongoBinData, use the bin field.