MongoDB\BSON\ObjectId::__toString

(mongodb >=1.0.0)

MongoDB\BSON\ObjectId::__toString — Returns the hexidecimal representation of this ObjectId

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

此函数没有参数。

Returns the hexidecimal representation of this ObjectId.

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


<?php

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

?>

以上例程的输出类似于：

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