spl_object_hash
(PHP 5 >= 5.2.0)
spl_object_hash — Return hash id for given object
Description
string spl_object_hash
( object $obj
)
This function returns a unique identifier for the object. This id can be used as a hash key for storing objects or for identifying an object.
Parameters
- object
-
Any object.
Return Values
A string that is unique for each currently existing object and is always the same for each object.
Examples
Example #1 A spl_object_hash() example
<?php
$id = spl_object_hash($object);
$storage[$id] = $object;
?>
Notes
Note:
When an object is destroyed, its hash may be reused for other objects.