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| <?php
/**
* Copyright (C) 2011+ Martin Lacroix
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* @license GNU General Public License Version 3 (GPLv3)
* @link http://www.gnu.org/licenses/
*/
/**
* PHP_VER : PHP 5.3+
* LIBRARIES :
* KEYWORDS : BASIC RAW ARRAY KEY VALUE DISABLE WITHOUT AUTO CASTING INTEGER FLOAT
* TABLEAU BRUT CLE CLEF VALEUR SANS TRANSTYPAGE ENTIER DECIMAL
*
* Class with array access methods that manage a special array without auto-casting of the keys
* A key equals to '1' (string) will be different from another that is equal to 1 (integer)
* It is even possible to have now a float number as one key of the array.
* Ex:
* $a = new SimpleArray();
* $a['123.456'] = 'string'; # the key is a string
* $a[123.456] = 'float'; # the key is a float
* $a[] = 'value'; # standard definition
*
* IMPORTANT:
* Because of some PHP limitations (or features...), it is impossible to walk through the array
* using foreach() or each().
* The right way to walk through is:
* $a->rewind();
* while($a->valid()) {
* # do some stuff using $a->key() and $a->current()
* $a->next();
* }
*
*
* Classe gérant un tableau spécial qui ne transtype pas ses clefs. Une clé '1' sera différente de 1
* Il est même possible de définir maintenant des nombres décimaux en guise de clef.
* Ex :
* $a = new SimpleArray();
* $a['123.456'] = 'string'; # la clef est une chaine
* $a[123.456] = 'float'; # la clef est un décimal
* $a[] = 'value'; # définition standard
*
* IMPORTANT:
* A cause de certaines limitations de PHP (ou fonctionnalités...), il est impossible de parcourir le tableau
* en utilisant foreach() ou each().
* Voici la bonne manière pour le parcourir :
* $a->rewind();
* while($a->valid()) {
* # opérations utilisant $a->key() et $a->current()
* $a->next();
* }
*
* @package tools
* @version 1.0.0
* @author Martin Lacroix
*/
class SimpleArray implements ArrayAccess, Iterator, Countable {
private $_data = array();
private $_keys = array();
private $_index = -1;
/**
* ARRAYACCESS INTERFACE
*/
function offsetExists($offset) {
return (FALSE !== array_search($offset, $this->_keys, TRUE));
}
function offsetGet($offset) {
$index = array_search($offset, $this->_keys, TRUE);
if (FALSE !== $key) {
return $this->_data[$index];
}
}
function offsetSet($offset, $value) {
if (NULL === $offset) {
$index = ++$this->_index;
$offset = $index;
}
else {
$index = array_search($offset, $this->_keys, TRUE);
if (FALSE === $index) {
$index = ++$this->_index;
}
}
$this->_data[$index] = $value;
$this->_keys[$index] = $offset;
}
function offsetUnset($offset) {
$index = array_search($offset, $this->_keys, TRUE);
if (FALSE !== $key) {
unset($this->_data[$index]);
unset($this->_keys[$index]);
}
}
/**
* ITERATOR INTERFACE
*/
function current() {
return $this->_data[key($this->_keys)];
}
function key() {
return current($this->_keys);
}
function next() {
next($this->_keys);
return $this->current();
}
function rewind() {
reset($this->_keys);
}
function valid() {
return (FALSE !== $this->key());
}
/**
* COUNTABLE INTERFACE
*/
function count() {
return count($this->_keys);
}
###########################################
/**
* Vérifie si une valeur est dans la tableau
* @param mixed $pNeedle
* @param bool $pStrict
* @return bool
*/
function inArray($pNeedle, $pStrict = TRUE) {
return (FALSE !== array_search($pNeedle, $this->_data, $pStrict));
}
/**
* Vérifie si une clé existe
* @param mixed $pKey (Strict comparison)
* @return bool
*/
function keyExists($pKey) {
return (FALSE !== array_search($pKey, $this->_keys, TRUE));
}
/**
* Cherche une valeur et renvoie la clé correspondante,
* sinon renvoie FALSE
* @param mixed $pNeedle
* @param bool $pStrict
* @return mixed|FALSE
*/
function search($pNeedle, $pStrict = TRUE) {
$index = array_search($pNeedle, $this->_data, $pStrict);
if (FALSE !== $index) {
return $this->_keys[$index];
}
}
}
?> |
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