嗨，我是一个编程初学者，我正试图在我的网站上做一个简单的注册函数，一个简单的表格，供用户填写，然后它应该存储在我的数据库中的数据，问题是一切工作(我认为):)，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" )?>
你必须检查你的mysqli数据库连接。@是PHP中的错误抑制操作符。
PHP支持一种错误控制操作符:@(@)。当在PHP中添加到表达式前时，该表达式可能生成的任何错误消息都将被忽略。:
错误控制操作符错误地使用@操作符更新:
在您的示例中，它在变量名之前使用，以避免那里的E_NOTICE错误。如果在$_POST数组中，没有设置hn键，它将抛出we_notice消息，但在那里使用@来避免E_NOTICE。
请注意，您也可以将这行放在脚本的顶部，以避免E_NOTICE错误:
error_reporting(E_ALL ^ E_NOTICE);PHP6注意:
因为@操作符非常慢，它不能在ini_set上工作，例如@ini_set。
你应该尽量避免使用它。
<?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" )?>