recode for PHP 7.3

conlite/classes/class.iterator.php

@@ -1,123 +1,86 @@
 <?php
-/**
- * Project: 
- * Contenido Content Management System
- * 
- * Description: 
- * Iterator class
- * 
- * Requirements: 
- * @con_php_req 5.0
- * 
- *
- * @package    Contenido Backend classes
- * @version    1.0.2
- * @author     unknown
- * @copyright  four for business AG <www.4fb.de>
- * @license    http://www.contenido.org/license/LIZENZ.txt
- * @link       http://www.4fb.de
- * @link       http://www.contenido.org
- * @since      file available since contenido release <= 4.6
- * 
- * {@internal 
- *   created unknown
- *   modified 2008-06-30, Dominik Ziegler, add security fix
- *
- *   $Id: class.iterator.php 2 2011-07-20 12:00:48Z oldperl $:
- * }}
- * 
- */
-
-if(!defined('CON_FRAMEWORK')) {
-	die('Illegal call');
-}
 
 /**
- * cIterator: A class which represents the C/C++/JAVA Iterator support.
+ * @package Core
- *
+ * @subpackage Util
- * Iterating items is a mechanism to "step" trough a list of defined items.
+ * @version $Rev$
- * Basically, the iterator is similar to an array, but provides easy functions
+ * @since 2.1
- * to step trough the list.
+ * @author Ortwin Pinke <o.pinke@conlite.org>
- *
+ * @copyright (c) 2019, conlite.org
- * An instance of an iterator is usually created by a class returning multiple
+ * @license http://www.gnu.de/documents/gpl.en.html GPL v3 (english version)
- * items and automatically filled using the $aItems parameter of the constructor,
+ * @license http://www.gnu.de/documents/gpl.de.html GPL v3 (deutsche Version)
- * and then returned to the caller.
+ * @link http://www.conlite.org ConLite.org
  * 
- * The caller receives the iterator object and can step trough all items using
+ * $Id:$
- * the "next" method.
- *
- * @todo Add more stepping methods, as well as retrieving items
- *
  */
-class cIterator
+// security check
-{
+defined('CON_FRAMEWORK') or die('Illegal call');
+
+class cIterator {
+
     /**
      * Holds the items which should be iterated
      * @var array
-     */	
+     */
-	var $_aIteratorItems;
+    var $_aIteratorItems;
-	
-	/**
-     * Iterator constructor
-     *
-     * This function initializes the constructor, adds the passed items
-     * and moves the iterator to the first element.
-     *
-     * @param $aItems array Items to add
-     * @return none
-     */	
-	function __construct ($aItems)
-	{
-		if (is_array($aItems))
-		{
-			$this->_aIteratorItems = $aItems;	
-		} else {
-			$this->_aIteratorItems = array();	
-		}
-		
-		$this->reset();
-	}
 
-	/**
+    /**
+     * Holds the keys of the array which should be iterated
+     *
+     * @var array
+     */
+    protected $_aKeys;
+
+    /**
+     * 
+     * @param array $aItems items to add
+     */
+    public function __construct($aItems) {
+        if (is_array($aItems)) {
+            $this->_aIteratorItems = $aItems;
+        } else {
+            $this->_aIteratorItems = array();
+        }
+
+        $this->reset();
+    }
+
+    /**
      * reset: Resets the iterator to the first element
      *
      * This function moves the iterator to the first element
-	 * 
+     * 
      * @return none
-     */		
+     */
-	function reset ()
+    function reset() {
-	{
+        $this->_aKeys = array_keys($this->_aIteratorItems);
-		reset($this->_aIteratorItems);	
+    }
-	}
 
-	/**
+    /**
      * next: Returns the next item in the iterator
      *
      * This function returns the item, or false if no
      * items are left.
-	 * 
+     * 
      * @return mixed item or false if nothing was found
-     */			
+     */
-	function next ()
+    function next() {
-	{
+        $key = array_shift($this->_aKeys);
-		$item = each($this->_aIteratorItems);
+        return isset($this->_aIteratorItems[$key]) ? $this->_aIteratorItems[$key] : false;
+    }
 
-		if ($item === false)
+    /**
-		{
-			return false;
-		} else {
-			return $item["value"];	
-		}
-	}
-
-	/**
      * count: Returns the number of items in the iterator
-	 * 
+     * 
      * @return int Number of items
-     */		
+     */
-	function count ()
+    function count() {
-	{
+        if(is_countable($this->_aIteratorItems)) {
-		return count($this->_aIteratorItems);
+            return count($this->_aIteratorItems);
-	}
+        }
+        return 0;
+    }
+
 }
+
 ?>