php man page for bson_encode

BSON_ENCODE(3)								 1							    BSON_ENCODE(3)

bson_encode - Serializes a PHP variable into a BSON string

SYNOPSIS
       string bson_encode (mixed  $anything)

DESCRIPTION
	This  function is very beta and entirely useless for 99% of users. It is only useful if you're doing something weird, such as writing your
       own driver on top of the PHP driver.

PARAMETERS
	      o $anything
		- The variable to be serialized.

RETURN VALUES
	Returns the serialized string.

PHP Documentation Group 													    BSON_ENCODE(3)