MongoId::__construct
(PECL mongo >= 0.8.0)
MongoId::__construct — Creates a new id
Description
public MongoId::__construct
([ string
$id = NULL
] )Parameters
-
id -
A string to use as the id. Must be 24 hexidecimal characters. If an invalid string is passed to this constructor, the constructor will ignore it and create a new id value.
Return Values
Returns a new id.
Examples
Example #1 MongoId::__construct() example
This example shows how to create a new id. This is seldom necessary, as the driver adds an id to arrays automatically before storing them in the database.
<?php
$id1 = new MongoId();
echo "$id1\n";
$id2 = new MongoId();
echo "$id2\n";
?>
The above example will output something similar to:
49a7011a05c677b9a916612a 49a702d5450046d3d515d10d
Example #2 Parameter example
This example shows how to use a string parameter to initialize a MongoId with a given value.
<?php
$id1 = new MongoId();
// create a new id from $id1
$id2 = new MongoId("$id1");
// show that $id1 and $id2 have the same hexidecimal value
var_dump($id1 == $id2);
?>
The above example will output something similar to:
bool(true)
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