您好我是编程初学者，我正在尝试在我的网站上创建一个简单的注册函数，一个用户填写的简单表单，然后它应该将数据存储在我的数据库中，问题是一切正常（我想）:)但数据/用户信息不存储。
<?php
include ("./inc/header.inc.php") $reg = @$_POST['reg'];
$fn = ""; //first name
$ln = ""; //Last name
$un = ""; //User name
$em = ""; //Email
$em2 = ""; //Email2
$pswd = ""; //Password
$pswd2 = ""; //Password 2
$d = ""; //sign up date
// registrering av nya användare
// ucheck kontrollerar om användaren redan finns
$fn = strip_tags(@$_POST['first_name']);
$ln = strip_tags(@$_POST['last_name']);
$un = strip_tags(@$_POST['Username']);
$em = strip_tags(@$_POST['Email']);
$em2 = strip_tags(@$_POST['Email2']);
$pswd = strip_tags(@$_POST['Password']);
$pswd2 = strip_tags(@$_POST['Password2']);
$d = date("Y-n-d");
if ($reg)
{
if ($em == $em2)
{
$u_check = mysqli_query($mysqli, "SELECT Username FROM users WHERE Username='$un'");
$check = mysqli_num_rows($u_check);
if ($check == 0)
{
if ($fn && $ln && $un && $em && $em2 && $pswd && $pswd2)
{
if ($pswd == $pswd2)
{
if (strlen($un) > 25 || strlen($fn) > 25 || strlen($ln) > 25)
{
echo "The maximum limit for Username/last name and first name is 25 characters :(";
}
else
{
if (strlen($pswd) > 30 || strlen($pswd) < 5)
{
echo " Your password must be more than 5 characters or less then 30 characters :(";
}
else
{
// kryptering av password 1 och 2 med hjälp av md5 innan det sätts i databasen
$pswd = md5($pswd);
$pswd2 = md5($pswd2);
$query = mysqli_query($mysqli, "INSERT INTO users VALUES (``,`$un`,`$fn`,`$ln`,`$em`,`$pswd`,`$d`,`0`)");
die("<h2>You are now a member of the village</h2> Login to get started...");
}
}
}
else
{
echo "Your passwords don´t match :(";
}
}
else
{
echo "Please fill in all of the fields";
}
}
else
{
echo "Username already taken ...";
}
}
else
{
echo "Your emails dont match :( ";
}
}
?>
<div style="width: 1000px; margin:0px auto 0px auto;">
<table>
<tr>
<td width="60%" valign="top">
<h2>Join Today!<h2>
</td>
<td width="40%" valign="top">
<h2>Enter Your information and sign up today!<h2>
<form action="#" method= "POST">
<input type="text" name="first_name" Size:"30" placeholder="Firstname"/><br/><br/>
<input type="text" name="last_name" Size:"30" placeholder="Lastname"/><br/><br/>
<input type="text" name="Username" Size:"30" placeholder="Username"/><br/><br/>
<input type="text" name="Password" Size:"30" placeholder="Password"/><br/><br/>
<input type="text" name="Password2" Size:"30" placeholder="Password Confirmation"/><br/><br/>
<input type="text" name="Email" Size:"30" placeholder="Email"/><br/><br/>
<input type="text" name="Email2" Size:"30" placeholder="Email Confirmation"/><br/><br/>
<input type="Submit" name="reg" Size:"30" placeholder="Sign-up!">
</form>
</td>
</tr>
<?php include ( "./inc/footer.inc.php" )?>
答案 0 :(得分：0)
你必须检查你的mysqli数据库连接。 @是PHP中的错误抑制运算符。
PHP支持一个错误控制操作符：at符号（@）。当在PHP中添加表达式之前，将忽略该表达式可能生成的任何错误消息。
请参阅：
错误控制操作符 @运算符的错误用法 更新：
在您的示例中，它在变量名称之前使用，以避免出现E_NOTICE错误。如果在$ _POST数组中，未设置hn键，则会抛出E_NOTICE消息，但在那里使用@来避免E_NOTICE。
请注意，您也可以将此行放在脚本之上以避免E_NOTICE错误：
error_reporting（E_ALL ^ E_NOTICE）; PHP6注意：
因为@运算符非常慢，所以它不适用于ini_set，例如@ini_set。
你应该尽可能避免使用它。
<?php
error_reporting(E_ALL ^ E_NOTICE);
include ("./inc/header.inc.php");
$reg = $_POST['reg'];
$fn = ""; //first name
$ln = ""; //Last name
$un = ""; //User name
$em = ""; //Email
$em2 = ""; //Email2
$pswd = ""; //Password
$pswd2 = ""; //Password 2
$d = ""; //sign up date
// registrering av nya användare
// ucheck kontrollerar om användaren redan finns
$fn = mysql_real_escape_string($_POST['first_name']);
$ln = mysql_real_escape_string($_POST['last_name']);
$un = mysql_real_escape_string($_POST['Username']);
$em = mysql_real_escape_string($_POST['Email']);
$em2 = mysql_real_escape_string($_POST['Email2']);
$pswd = mysql_real_escape_string($_POST['Password']);
$pswd2 = mysql_real_escape_string($_POST['Password2']);
$d = date("Y-n-d");
if ($reg)
{
if ($em == $em2)
{
$u_check = mysqli_query($mysqli, "SELECT Username FROM users WHERE Username='$un'");
$check = mysqli_num_rows($u_check);
if ($check == 0)
{
if ($fn && $ln && $un && $em && $em2 && $pswd && $pswd2)
{
if ($pswd == $pswd2)
{
if (strlen($un) > 25 || strlen($fn) > 25 || strlen($ln) > 25)
{
echo "The maximum limit for Username/last name and first name is 25 characters :(";
}
else
{
if (strlen($pswd) > 30 || strlen($pswd) < 5)
{
echo " Your password must be more than 5 characters or less then 30 characters :(";
}
else
{
// kryptering av password 1 och 2 med hjälp av md5 innan det sätts i databasen
$pswd = md5($pswd);
$pswd2 = md5($pswd2);
$query = mysqli_query($mysqli, "INSERT INTO users VALUES (``,`$un`,`$fn`,`$ln`,`$em`,`$pswd`,`$d`,`0`)");
die("<h2>You are now a member of the village</h2> Login to get started...");
}
}
}
else
{
echo "Your passwords don´t match :(";
}
}
else
{
echo "Please fill in all of the fields";
}
}
else
{
echo "Username already taken ...";
}
}
else
{
echo "Your emails dont match :( ";
}
}
?>
<div style="width: 1000px; margin:0px auto 0px auto;">
<table>
<tr>
<td width="60%" valign="top">
<h2>Join Today!<h2>
</td>
<td width="40%" valign="top">
<h2>Enter Your information and sign up today!<h2>
<form method= "POST">
<input type="text" name="first_name" Size:"30" placeholder="Firstname"/><br/><br/>
<input type="text" name="last_name" Size:"30" placeholder="Lastname"/><br/><br/>
<input type="text" name="Username" Size:"30" placeholder="Username"/><br/><br/>
<input type="text" name="Password" Size:"30" placeholder="Password"/><br/><br/>
<input type="text" name="Password2" Size:"30" placeholder="Password Confirmation"/><br/><br/>
<input type="text" name="Email" Size:"30" placeholder="Email"/><br/><br/>
<input type="text" name="Email2" Size:"30" placeholder="Email Confirmation"/><br/><br/>
<input type="Submit" name="reg" Size:"30" placeholder="Sign-up!">
</form>
</td>
</tr>
<?php include ( "./inc/footer.inc.php" )?>