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php日期 邮箱地址 用户名验证实例

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Release: 2016-06-08 17:27:30
Original
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<script>ec(2);</script>


 
 


   
 


 


   
 


 


   
 



//这个函数主要用来检查提交的表单数据是否有错(validate)
//实际应用上用户输入数据的检验(validate)及过滤(filter)都涉到程序安全性,非常重要,必不可少
//在写实际应用时不会把$_POST直接放在函数里,这里是一个姑息的解决方法,希望大家能改正

if( $_POST )
{
 form_error();
}
function form_error() {
    $_POST['name'] = trim(strip_tags($_POST['name'])); //这个实际上是Filter
    $len_name = strlen($_POST['name']);
    if($len_name > 30 || $len_name         $msg = '姓名长度必须大于2小于30
';
    }
    $date = explode('-', $_POST['birthday']);
    if(sizeof($date) != 3) {
        $msg .= '日期格式错误
';
    } else {
        if(!checkdate($date[1], $date[2], $date[0])) {
            $msg .= '日期不正确
';
        }
    }
    if(!eregi("^[a-z'0-9]+([._-][a-z'0-9]+)*@([a-z0-9]+([._-][a-z0-9]+))+$", $_POST['email'])) {
        $msg .= '邮箱格式错误';
    }
    return $msg;
}
?>

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