(mongodb >=1.0.0)
MongoDB\BSON\Timestamp::__toString — Returns the string representation of this Timestamp
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Returns the string representation of this Timestamp.
Example #1 MongoDB\BSON\Timestamp::__toString() example
<?php
$timestamp = new MongoDB\BSON\Timestamp(1234, 5678);
var_dump((string) $timestamp);
?>
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string(11) "[1234:5678]"