MongoDB\BSON\ObjectId::__toString

(mongodb >=1.0.0)

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

說明

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

參數(shù)

此函數(shù)沒有參數(shù)。

返回值

Returns the hexidecimal representation of this ObjectId.

范例

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

<?php

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

?>

以上例程的輸出類似于：

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