MongoDB\BSON\ObjectId
PHP Manual

MongoDB\BSON\ObjectId::__toString

Returns the hexidecimal representation of this ObjectId

Description

final public string MongoDB\BSON\ObjectId::__toString()

Parameters

This function has no parameters.

Return Values

Returns the hexidecimal representation of this ObjectId.

Examples

Example #1 MongoDB\BSON\ObjectId::__toString example

<?php

var_dump((string) new MongoDB\BSON\ObjectId());
var_dump((string) new MongoDB\BSON\ObjectId('000000000000000000000001'));

?>

The above example will output something similar to:

string(24) "56731b49da14d8747d701211"
string(24) "000000000000000000000001"