# 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 an 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

Returns a string that is unique for each object and is always the same for the same object.

### Examples

Example#1 A spl_object_hash() example

`<?php
$id = spl_object_hash($object);
$storage[$id] = $object;
?>`