www.gusucode.com > ROCBOSS微社区-微信论坛程序 v2.1PHP源码程序 > ROCBOSS微社区-微信论坛程序 v2.1/ROCBOSS_v2.1.0/ROCBOSS_v2.1.0/system/util/Collection.php

    <?php
# 允许你既可以以使用数组的方式，也能以使用对象的方式来访问数据。

namespace system\util;

class Collection implements \ArrayAccess, \Iterator, \Countable
{
    private $data;
    
    public function __construct(array $data = array())
    {
        $this->data = $data;
    }
    
    public function __get($key)
    {
        return isset($this->data[$key]) ? $this->data[$key] : null;
    }
    
    public function __set($key, $value)
    {
        $this->data[$key] = $value;
    }
    
    public function __isset($key)
    {
        return isset($this->data[$key]);
    }
    
    public function __unset($key)
    {
        unset($this->data[$key]);
    }
    
    public function offsetGet($offset)
    {
        return isset($this->data[$offset]) ? $this->data[$offset] : null;
    }
    
    public function offsetSet($offset, $value)
    {
        if (is_null($offset))
        {
            $this->data[] = $value;
        }
        else
        {
            $this->data[$offset] = $value;
        }
    }
    
    public function offsetExists($offset)
    {
        return isset($this->data[$offset]);
    }
    
    public function offsetUnset($offset)
    {
        unset($this->data[$offset]);
    }
    
    public function rewind()
    {
        reset($this->data);
    }
    
    public function current()
    {
        return current($this->data);
    }
    
    public function key()
    {
        return key($this->data);
    }
    
    public function next()
    {
        return next($this->data);
    }
    
    public function valid()
    {
        $key = key($this->data);

        return ($key !== NULL && $key !== FALSE);
    }
    
    public function count()
    {
        return sizeof($this->data);
    }
    
    public function keys()
    {
        return array_keys($this->data);
    }
    
    public function getData()
    {
        return $this->data;
    }
    
    public function setData(array $data)
    {
        $this->data = $data;
    }
    
    public function clear()
    {
        $this->data = array();
    }
}
?>