spl_object_hash
(PHP 5 >= 5.2.0, PHP 7, PHP 8)
spl_object_hash — Return hash id for given object
Description
spl_object_hash(object
$object): stringThis 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, as long as the object is not destroyed. Once the object is destroyed, its hash may be reused for other objects. This behavior is similar to spl_object_id().
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.
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