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

reset

Contents

(PHP 4, PHP 5, PHP 7)

reset — Set the internal pointer of an array to its first element

Description

reset ( array &$array ) : mixed

reset() rewinds array's internal pointer to the first element and returns the value of the first array element.

PHP: reset - Manual Home of Manuel PHP  Contents Haut

Parameters

array

The input array.

PHP: reset - Manual Home of Manuel PHP  Contents Haut

Return Values

Returns the value of the first array element, or FALSE if the array is empty.

Warning

This function may return Boolean FALSE, but may also return a non-Boolean value which evaluates to FALSE. Please read the section on Booleans for more information. Use the === operator for testing the return value of this function.

PHP: reset - Manual Home of Manuel PHP  Contents Haut

Examples

Example #1 reset() example

<?php

$array = array('step one', 'step two', 'step three', 'step four');

// by default, the pointer is on the first element
echo current($array) . "<br />\n"; // "step one"

// skip two steps
next($array);
next($array);
echo current($array) . "<br />\n"; // "step three"

// reset pointer, start again on step one
reset($array);
echo current($array) . "<br />\n"; // "step one"

?>

PHP: reset - Manual Home of Manuel PHP  Contents Haut

Notes

Note: The return value for an empty array is indistinguishable from the return value in case of an array which has a boolean FALSE first element. To properly check the value of the first element of an array which may contain FALSE elements, first check the count() of the array, or check that key() is not NULL, after calling reset().

PHP: reset - Manual Home of Manuel PHP  Contents Haut

See Also

  • current() - Return the current element in an array
  • each() - Return the current key and value pair from an array and advance the array cursor
  • end() - Set the internal pointer of an array to its last element
  • next() - Advance the internal pointer of an array
  • prev() - Rewind the internal array pointer
  • array_key_first() - Gets the first key of an array

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-reset.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