一些简单的php工具类

<?php
/**
 * 验证器
 * @author 曹勇
 * @example
 * $data = array('username' => 'caoyong','password' => '');
 * $rules = array('username' => 'require','password' => 'require');
 * $validator = new Validator($data,$rules);
 * $is_pass = $validator->passed(); 
 * $is_fail = $validator->failed();
 * $message = $validator->messages();;
 */

class Validator
{
	/**
	 * 待验证数据
	 * @var array
	 */
	protected $data;
	
	/**
	 * 验证规则
	 * @var array
	 */
	protected $rule;
	
	/**
	 * 错误信息
	 * @var array
	 */
	protected $messages;
	
	/**
	 * 自定义错误信息
	 * @var array
	 */
	protected $custom_messages;
	
	/**
	 * 扩展规则
	 * @var array
	 */
	protected static $extensions = array();
	
	public function __construct(array $data,array $rule,array $messages = array())
	{
		$this->setData($data);
		$this->setRule($rule);
		$this->setMessages($messages);
	}
	
	public function setData(array $data)
	{
		$this->data = $data;
	}
	
	public function setRule(array $rule)
	{
		$this->rule = $rule;
	}
	
	public function setMessages(array $messages)
	{
		$this->custom_messages = $messages;
	}
	
	protected function validate($attr,$rule)
	{
		if (is_array($rule))
		{
			foreach ($rule as $v)
			{
				if(false === $this->validate($attr, $v))
					break;
			}
		} 
		else
		{
			list($rule,$args) = $this->parseRule($rule);
			
			$method = 'validate'.$rule;
			
			$args = array_merge(array($attr,$this->getValue($attr)),$args);
			
			$result =  call_user_func_array(array($this,$method), $args);
			
			if (false === $result)
			{
				$rule = lcfirst($rule);
				if (isset($this->custom_messages[$attr]))
				{
					if (is_array($this->custom_messages[$attr]) && isset($this->custom_messages[$attr][$rule]))
					{
						$message = $this->custom_messages[$attr][$rule];
					}
					else
					if (is_string($this->custom_messages[$attr]))
					{
						$message = $this->custom_messages[$attr];
					}
					else 
					{
						$message = $attr.' return failed in rule '.$rule;
					}
				}
				else
					$message = $attr.' return failed in rule '.$rule;
				$this->messages[$attr] = $message;
			}
			return $result;
		} 	
	}
	
	public function passed()
	{
		foreach ($this->rule as $attr => $rule)
		{
			$this->validate($attr, $rule);
		}
		return 0 === count($this->messages);
	}
	
	public function failed()
	{
		return !$this->passed();
	}
	
	public function messages($key = false)
	{
		if ($key && isset($this->messages[$key]))
			return $this->messages[$key];
		return $this->messages;
	}
	
	protected function parseRule($rule)
	{
		if (false !== strpos($rule,'|'))
		{
			list($rulename,$args) = explode('|', $rule);
			$args = explode(':', $args);
		}
		else 
		{
			$rulename = $rule;
			$args = array();
		}
		return array(ucfirst($rulename),$args);
	}
	
	protected function getValue($attr)
	{
		if(!is_null($value = $this->data[$attr]))
			return $value;
	}
	
	/**
	 * 扩展验证规则
	 * @param string $name
	 * @param Closure $rule
	 */
	public static function addExtension($name,Closure $rule)
	{
		static::$extensions[$name] = $rule;
	}
	
	/**
	 *  批量增加扩展规则
	 *  @param $rules array
	 */	
	
	public static function addExtensions(array $rules)
	{
		foreach ($rules as $k => $v)
		{
			static::addExtenstion($k, $v);
		}
	}
	
	public function __call($method,$args)
	{
		$method = lcfirst(substr($method, 8));
		
		$args = array_merge(array($this),$args);
		
		if (isset(static::$extensions[$method]))
		{
			return call_user_func_array(static::$extensions[$method], $args);
		}
		
		throw new Exception('rule '.$method.' dose not exits');
	}
	
	protected function validateRequired($attr,$value)
	{
		return !empty($value);
	}
	
	protected function validateLength($attr,$value,$len)
	{
		return  $len == $min;
	}
	
	protected function validateMin($attr,$value,$len)
	{
		return strlen($value) > $len;
	}
	
	protected function validateMax($attr,$value,$len)
	{
		return strlen($value) < $len;
	}
	
	protected function ValidateBetween($attr,$value,$min,$max)
	{
		return $this->validateMin($attr, $value, $min) && $this->validateMax($attr, $value, $max);
	}
	
	protected function validateEmail($attr,$value)
	{
		$regex = '/[\w!#$%&\'*+\/=?^_`{|}~-]+(?:\.[\w!#$%&\'*+\/=?^_`{|}~-]+)*@(?:[\w](?:[\w-]*[\w])?\.)+[\w](?:[\w-]*[\w])?/i';
		
		return (bool)preg_match($regex, $value);
	}
	
	protected function validateNumber($attr,$value)
	{
		return is_numeric($value);
	}
	
	protected function validateIn($attr,$value,$in_data)
	{
		$in_data = explode(',', $in_data);
		return in_array($value, $in_data);
	}
	
	protected function validateNotin($attr,$value,$in_data)
	{
		return !$this->validateIn($attr, $value, $in_data);
	}
	
	protected function validateEq($attr,$value,$eq)
	{
		return $value == $eq;
	}
	
	protected function validateConfirm($attr,$value,$confirm)
	{
		return $this->validateEq($attr, $value, $this->getValue($confirm));
	}
	
	protected function validateUrl($attr,$value)
	{
		$regex = '/[a-zA-z]+://[^\s]*/i';
		return (bool)preg_match($regex, $value);
	}
	
	protected function validateMobile($attr,$value)
	{
		return preg_match('/1(3|4|5|8})\d{9}/',$value);
	}
	
	protected function validateQQ($attr,$value)
	{
		return preg_match('/\d{5,}/', $value);
	}
}