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匹配域名:(这个还不是很好,有空查看一下以前孙凯写的)
$urlRule = "/(http|https):\/\/[0-9a-z\/\-]+[0-9a-z\.\/\-\?\=]+[0-9a-z\.\/\-\=&]*/";
if (!preg_match($urlRule, $data[‘appurl‘])) {
    $this->error(‘app登录成功后打开的地址格式错误!‘);die;
}
匹配邮箱:
 $emailRule = "/^\w+(\.\w+)*@\w+(\.\w+)+$/";
匹配手机号:
  $phoneRule = "/^1[3458]\d{9}$|17[8673]/d{8}$/";
	  if (!preg_match($phoneRule, $data[‘phone‘])) {
echo "<script type=‘text/javascript‘>alert(‘手机号格式错误‘);history.back();</script>";exit;
  }
匹配日期:
   $dataRule = "/(\d{4}-((0?[1-9])|(1[0-2]))-((0?[1-9])|([1-2][0-9])|(3[01]))\s+((0?[1-9])|(1[0-9])|(2[0-4])):[0-5]+[0-9](:[0-5]+[0-9])+)/";
   $dateRule2 = "/(\d{4}(-|年)((0?[1-9])|(1[0-2]))(-|月)((0?[1-9])|([1-2][0-9])|(3[01]))(日)?\s+((0?[1-9])|(1[0-9])|(2[0-4])):[0-5]+[0-9](:[0-5]+[0-9])+)/";
匹配用户名:
    $ruler1="/^[\x{4e00}-\x{9fa5}A-Za-z0-9_]{4,12}+$/u";
			    if(!preg_match($ruler1, $username)){
				      echo "<script>alert(‘用户名格式错误‘)</script>";
				      echo "<script type=‘text/javascript‘>history.back();</script>";
				      exit;
			    }
匹配密码:
  $pwdRule = "/^(?![0-9]+$)(?![a-zA-Z]+$)[0-9A-Za-z]{6,20}$/";(西湖的)
    $pwdRule2 = "/^[\x{4e00}-\x{9fa5}A-Za-z0-9_]{6,12}+$/u";(我的)
if (!preg_match($pwdRule , $data[‘pwd‘])) {
echo "<script type=‘text/javascript‘>alert(‘密码必须由6-20位字母、数字组合‘);history.back();</script>";
}
//记得判断数据是否完整
    if(empty($username) || empty($password) || empty($status) || empty($phone)){
				      echo "<script>alert(‘数据不完整‘)</script>";
				      echo "<script type=‘text/javascript‘>history.back();</script>";
				      exit;
			    }
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原文地址:http://www.cnblogs.com/hfdp/p/5852498.html