php可扩展的验证类实例(可对邮件、手机号、URL等验证)，实例url

require_once('./Validator.class.php');
$data = array(
  'nickname' => 'heno' ,
  'realname' => 'steven',
  'age' => 25,
  'mobile' => '1521060426');
$validator = new Validator($data);
$validator->setRule('nickname', 'required');
$validator->setRule('realname', array('length' => array(1,6), 'required'));
$validator->setRule('age', array('required', 'digit'));
$validator->setRule('mobile', array('mobile'));
$result = $validator->validate();
var_dump($result);
var_dump($validator->getResultInfo());

<&#63;php
/**
 * Validator 数据验证类
 * @package library
 * @category library
 * @author Steven
 * @version 1.0
 */
/**
 * Validator 数据验证类
 * @package library
 * @category library
 * @author Steven
 * @version 1.0
 */
class Validator {
 /**
  * 待校验数据
  * @var array
  */
 private $_data;
 /**
  * 校验规则
  * @var array
  */
 private $_ruleList = null;
 /**
  * 校验结果
  * @var bool
  */
 private $_result = null;
 /**
  * 校验数据信息
  * @var array
  */
 private $_resultInfo = array();
 /**
  * 构造函数
  * @param array $data 待校验数据
  */
 public function __construct($data = null)
 {
  if ($data) {
   $this->_data = $data;
  }
 }
 /**
  * 设置校验规则
  * @param string $var 带校验项key
  * @param mixed $rule 校验规则
  * @return void
  */
 public function setRule($var, $rule)
 {
  $this->_ruleList[$var] = $rule;
 }
 /**
  * 检验数据
  * @param array $data 
  * <code>
  * $data = array('nickname' => 'heno' , 'realname' => 'steven', 'age' => 25);
  * $validator = new Validator($data);
  * $validator->setRule('nickname', 'required');
  * $validator->setRule('realname', array('lenght' => array(1,4), 'required'));
  * $validator->setRule('age', array('required', 'digit'));
  * $result = $validator->validate();
  * var_dump($validator->getResultInfo());
  * </code>
  * @return bool
  */
 public function validate($data = null)
 {
  $result = true;
  /* 如果没有设置校验规则直接返回 true */
  if ($this->_ruleList === null || !count($this->_ruleList)) {
   return $result;
  }
  /* 已经设置规则，则对规则逐条进行校验 */
  foreach ($this->_ruleList as $ruleKey => $ruleItem) {
   /* 如果检验规则为单条规则 */
   if (!is_array($ruleItem)) {
    $ruleItem = trim($ruleItem);
    if (method_exists($this, $ruleItem)) {
     /* 校验数据，保存校验结果 */
     $tmpResult = $this->$ruleItem($ruleKey);
     if (!$tmpResult) {
      $this->_resultInfo[$ruleKey][$ruleItem] = $tmpResult;
      $result = false;
     }
    }
    continue;
   }
   /* 校验规则为多条 */
   foreach ($ruleItem as $ruleItemKey => $rule) {
    if (!is_array($rule)) {
     $rule = trim($rule);
     if (method_exists($this, $rule)) {
      /* 校验数据，设置结果集 */
      $tmpResult = $this->$rule($ruleKey);
      if (!$tmpResult) {
       $this->_resultInfo[$ruleKey][$rule] = $tmpResult;
       $result = false;
      }
     }
    } else {
     if (method_exists($this, $ruleItemKey)) {
      /* 校验数据，设置结果集 */
      $tmpResult = $this->$ruleItemKey($ruleKey, $rule);
      if (!$tmpResult) {
       $this->_resultInfo[$ruleKey][$ruleItemKey] = $tmpResult;
       $result = false;
      }
     }
    }
   }
  }
  return $result;
 }
 /**
  * 获取校验结果数据
  * @return [type] [description]
  */
 public function getResultInfo()
 {
  return $this->_resultInfo;
 }
 /**
  * 校验必填参数
  * @param string $varName 校验项
  * @return bool
  */
 public function required($varName) 
 {
  $result = false;
  if (is_array($this->_data) && isset($this->_data[$varName])) {
   $result = true;
  }
  return $result;
 }
 /**
  * 校验参数长度
  * 
  * @param string $varName 校验项
  * @param array $lengthData array($minLen, $maxLen)
  * @return bool
  */
 public function length($varName, $lengthData)
 {
  $result = true;
  /* 如果该项没有设置，默认为校验通过 */
  if ($this->required($varName)) {
   $varLen = mb_strlen($this->_data[$varName]);
   $minLen = $lengthData[0];
   $maxLen = $lengthData[1];
   if ($varLen < $minLen || $varLen > $maxLen) {
    $result = true;
   }
  }
  return $result;
 }
 /**
  * 校验邮件
  * @param string $varName 校验项
  * @return bool
  */
 public function email($varName)
 {
  $result = true;
  /* 如果该项没有设置，默认为校验通过 */
  if ($this->required($varName)) {
   $email = trim($this->_data[$varName]);
   if (preg_match('/^[-\w]+&#63;@[-\w.]+&#63;$/', $email)) {
    $result = false;
   }
  }
  return $result;
 }
 /**
  * 校验手机
  * @param string $varName 校验项
  * @return bool
  */
 public function mobile($varName)
 {
  $result = true;
  /* 如果该项没有设置，默认为校验通过 */
  if ($this->required($varName)) {
   $mobile = trim($this->_data[$varName]);
   if (!preg_match('/^1[3458]\d{10}$/', $mobile)) {
    $result = false;
   }
  }
  return $result;
 }
 /**
  * 校验参数为数字
  * @param string $varName 校验项
  * @return bool
  */
 public function digit($varName)
 {
  $result = false;
  if ($this->required($varName) && is_numeric($this->_data[$varName])) {
   $result = true;
  }
  return $result;
 }
 /**
  * 校验参数为身份证
  * @param string $varName 校验项
  * @return bool
  */
 public function ID($ID)
 {
 }
 /**
  * 校验参数为URL
  * @param string $varName 校验项
  * @return bool
  */
 public function url($url)
 {
  $result = true;
  /* 如果该项没有设置，默认为校验通过 */
  if ($this->required($varName)) {
   $url = trim($this->_data[$varName]);
   if(!preg_match('/^(http[s]&#63;::)&#63;\w+&#63;(\.\w+&#63;)$/', $url)) {
    $result = false;
   }
  }
  return $result;
 }
}
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