php 한글 메뉴얼 도움말 검색 사이트 Return hash id for given object [function.spl-object-hash]

설명

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, as long as the object is not destroyed. Once the object is destroyed, its hash may be reused for other objects.

인수

object: Any object.

반환값

A string that is unique for each currently existing object and is always the same for each object.

예제

Example #1 A spl_object_hash() example


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

주의

Note:
When an object is destroyed, its hash may be reused for other objects.