No cache version.


Caching disabled. Default setting for this page:enabled (code LNG204)
If the display is too slow, you can disable the user mode to view the cached version.

Rechercher une fonction PHP

The Hashable interface

Contents

(No version information available, might only be in Git)

Introduction

Hashable is an interface which allows objects to be used as keys. It’s an alternative to spl_object_hash(), which determines an object’s hash based on its handle: this means that two objects that are considered equal by an implicit definition would not treated as equal because they are not the same instance.

hash() is used to return a scalar value to be used as the object's hash value, which determines where it goes in the hash table. While this value does not have to be unique, objects which are equal must have the same hash value.

equals() is used to determine if two objects are equal. It's guaranteed that the comparing object will be an instance of the same class as the subject.

PHP: Hashable - Manual Home of Manuel PHP  Contents Haut

Interface synopsis

Ds\Hashable {
/* Methods */
abstract public equals ( object $obj ) : bool
abstract public hash ( void ) : mixed
}

PHP: Hashable - Manual Home of Manuel PHP  Contents Haut

Table of Contents

Find a PHP function

English translation

You have asked to visit this site in English. For now, only the interface is translated, but not all the content yet.

If you want to help me in translations, your contribution is welcome. All you need to do is register on the site, and send me a message asking me to add you to the group of translators, which will give you the opportunity to translate the pages you want. A link at the bottom of each translated page indicates that you are the translator, and has a link to your profile.

Thank you in advance.

Document created the 30/01/2003, last modified the 26/10/2018
Source of the printed document:https://www.gaudry.be/en/php-rf-class.ds-hashable.html

The infobrol is a personal site whose content is my sole responsibility. The text is available under CreativeCommons license (BY-NC-SA). More info on the terms of use and the author.

References

  1. View the html document Language of the document:fr Manuel PHP : http://php.net

These references and links indicate documents consulted during the writing of this page, or which may provide additional information, but the authors of these sources can not be held responsible for the content of this page.
The author This site is solely responsible for the way in which the various concepts, and the freedoms that are taken with the reference works, are presented here. Remember that you must cross multiple source information to reduce the risk of errors.

Contents Haut