发布PHP-MySQL注册表格

Question

表单提交后，浏览器只显示空白页面。没有其他的。我已启用错误报告。在PHP日志中没有错误。也试过（如你所见）echo $sql; die();。仍然没有结果。如何解决它？我的代码有什么问题？我的PHP代码（处理申请表单的数据）看起来像

<?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"; 
} 
?> 

顺便说功能filter从common.php杀毒所有帖子

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

我觉得你一个非空的错误阵列检查应在检查是否有任何错误的地方之后向上移动一步。

... 
    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"; 
    } 
} 

Answer 2

我会强烈建议得到安装在开发机器上的XDebug，并使用类似的NetBeans，Eclipse的PDT IDE或更好PHPStorm尝试设置你的代码中的断点，看在它打破了哪一点。

您可以在这里得到了XDebug：http://xdebug.org

或者，退一步，并添加以下行

exit("i was here!"); 

在1号线，首先确定脚本实际运行，如果您可以逐步查看输出结果，将其向下移动一行，保存并重新运行该脚本，然后冲洗并重复，直至其中断。

我在这个片段中假设为好，虽然你有错误报告打开，有可能是代码行中的任何3个文件，你都包括转回来再次关闭，如：

error_reporting(0); 

或甚至：

ini_set('display_errors','Off');