获取数组值，方便用于checkbox lookup

<?php class Lookup { private static $_items=array(); /** * Returns the items for the specified type. * @param string item type (e.g. 'PostStatus'). * @return array item names indexed by item code. The items are order by their position values. * An empty array is returned if the item type does not exist. */ public static function items($type, $showType='') { if(!isset(self::$_items[$type])) self::loadItems($type, $showType); return self::$_items[$type]; } /** * Returns the item name for the specified type and code. * @param string the item type (e.g. 'PostStatus'). * @param integer the item code (corresponding to the 'code' column value) * @return string the item name for the specified the code. False is returned if the item type or code does not exist. */ public static function item($type, $code, $showType = '') { if(!isset(self::$_items[$type])) self::loadItems($type, $showType); return isset(self::$_items[$type][$code]) ? self::$_items[$type][$code] : false; } /** * Loads the lookup items for the specified type from the database. * @param string the item type */ private static function loadItems($type, $showType='') { self::$_items[$type] = array(); $models = self::data($type, $showType); self::$_items[$type] = $models; } private static function data($type, $showType = '') { $r = array(); // 投放平台 $r['item']['a'] = 'a'; $r['item']['b'] = 'b'; $r['item']['c'] = 'c'; $r['item']['d'] = 'd'; return $r[$type]; } }

Lookup::item('item','a');

Lookup::items('item',);