php - 有问题的 PHP-MySQL 注册表单

Question

表单提交后浏览器只显示空白页面。没有其他的。我启用了错误报告。 php 日志中没有错误。也试过(如你所见)echo $sql;死亡()；。还是没有结果。如何解决？我的代码有什么问题？我的 php 代码(处理注册表单数据)看起来像这样

<?php
require '../includes/db.php';
require '../includes/ipurl.php';
require '../includes/common.php';
$page = 'signup';
if (mysqli_connect_errno()) {
    printf("Connect failed: %s\n", mysqli_connect_error());
    exit( );
}


if ($_POST['submit'] == 'Tamam') {
    $err = array( );
    foreach ($_POST as $key => $value) {
        $data[$key] = filter($value);
    }
    if (empty($data['fname']) || strlen($data['fname']) < 2 || empty($data['mname']) || strlen($data['mname']) < 2 || empty($data['lname']) || strlen($data['lname']) < 2) {
        $err[ ] = 1;
    }

    if (!isUserID($data['login'])) {
        $err[ ] = 2;
    }

    if (!isEmail($data['email'])) {
        $err[ ] = 3;
    }

    if (!checkPwd($data['pwd'], $data['pwd2'])) {
        $err[ ] = 4;
    }

    $pwd = PwdHash($data['pwd']);

    $host       = $_SERVER['HTTP_HOST'];
    $host_upper = strtoupper($host);
    $path       = rtrim(dirname($_SERVER['PHP_SELF']), '/\\');

    $activ_code = rand(1000, 9999);

    $email = $data['email'];
    $login = $data['login'];
    $dob   = date('Y-m-d', strtotime($data['dob']));
    $age   = date("Y") - date('Y', strtotime($data['dob']));
    $type  = $data['type'];


    $rs_duplicate = $db->query("select count(*) as total from users where email='$email' OR login='$login'") or die($db->error);
    list($total) = $rs_duplicate->fetch_row();

    if ($total > 0) {
        $err[ ] = 5;
    }

    if (isset($type)) {
        if ($type == 1) {
            $region     = $data['region'];
            $school     = $data['school'];
            $class      = $data['class'];
            $group      = 0;
            $subject    = 0;
            $university = 0;
            $profession = 0;
        }
        if ($type == 2) {
            $group      = $data['group'];
            $region     = $data['region'];
            $school     = $data['school'];
            $class      = $data['class'];
            $subject    = 0;
            $university = 0;
            $profession = 0;

        }
        if ($type == 3) {
            $group      = 0;
            $region     = 0;
            $school     = 0;
            $class      = 0;
            $subject    = 0;
            $university = $data['university'];
            $profession = $data['profession'];
        }
        if ($type == 4) {
            $group      = 0;
            $region     = 0;
            $school     = 0;
            $class      = 0;
            $university = 0;
            $profession = 0;
            $subject    = $data['subject'];
        }
    }
    if (!isset($type)) {
        $err[ ] = 9;
    }
    if (empty($err)) {
        $sql = "INSERT INTO users
(level,fname, mname, lname, dob, age, reg_date, phone, email, login, pwd, type, `group`, region, school, class, ip, subject, ban, university, profession, activation_code) 
VALUES 
('1','$data[fname]', '$data[mname]', '$data[lname]', '$dob', '$age', now(), '$data[phone]', '$email', '$login', '$pwd', '$type', '$group', '$region', '$school', '$class',  '$ip', '$subject', NULL, '$university', '$profession', '$activ_code')";
        echo $sql; die();
        $result = $db->query($sql) or die(printf("Bazaya daxiletmə zamanı səhv: %s\n", $db->error));
        $id     = $db->insert_id;
        $md5_id = md5($id);
        $db->query("update users set md5_id='$md5_id' where id='$id'") or die(printf("Bazaya daxiletmə zamanı səhv: %s\n", $db->error));
        include "../includes/success.php";
    }

} else if (!empty($err)) {
    include "../includes/error.php";
}
?>

顺便说一下 common.php 中的函数 filter 清理所有帖子

function filter($data) {
    $data = trim(htmlentities(strip_tags($data)));

    if (get_magic_quotes_gpc())
        $data = stripslashes($data);

    $data = mysql_real_escape_string($data);

    return $data;
}

Answer 1

我认为您对非空错误数组的检查应该在检查是否有任何错误之后向上移动一个步骤。

    ...
    if (empty($err)) {
        $sql = "INSERT INTO users
(level,fname, mname, lname, dob, age, reg_date, phone, email, login, pwd, type, `group`, region, school, class, ip, subject, ban, university, profession, activation_code) 
VALUES 
('1','$data[fname]', '$data[mname]', '$data[lname]', '$dob', '$age', now(), '$data[phone]', '$email', '$login', '$pwd', '$type', '$group', '$region', '$school', '$class',  '$ip', '$subject', NULL, '$university', '$profession', '$activ_code')";
        echo $sql; die();
        $result = $db->query($sql) or die(printf("Bazaya daxiletmə zamanı səhv: %s\n", $db->error));
        $id     = $db->insert_id;
        $md5_id = md5($id);
        $db->query("update users set md5_id='$md5_id' where id='$id'") or die(printf("Bazaya daxiletmə zamanı səhv: %s\n", $db->error));
        include "../includes/success.php";
    } else if (!empty($err)) {
        include "../includes/error.php";
    }
}