-4

我没有看到问题。我的所有数据都不会插入注册数据库。请检查 INSERT INTO 部分。我是编码的初学者，所以我不太了解这些东西。请帮我。

<?php 

**my info is here**

//Connect to database 

mysql_connect ($dbhost, $dbuser, $dbpass)or die("Could not connect: ".mysql_error()); 
mysql_select_db($dbname) or die(mysql_error()); 
?> 


<?php 
if(isset($_POST['submit'])){ 
$username = $_POST[user]; 
$password = $_POST[pass]; 

// lets check to see if the username already exists 

$checkuser = mysql_query("SELECT username FROM register WHERE username='$username'");  

$username_exist = mysql_num_rows($checkuser); 

 if($username_exist > 0){ 
echo "I'm sorry but the username you specified has already been taken.Please pick      another one."; 
unset($username); 
exit(); 
}  

// lf no errors present with the username 
// use a query to insert the data into the database. 

$query = ("INSERT INTO register (username, password) 
VALUES ('$username', '$password')"); 
mysql_query($query) or die(mysql_error()); 
mysql_close($query); 


} 


?>
4

1 回答 1

0

评论者认为您应该使用 mysqli 或 PDO 是正确的，但请尝试一下，看看它是否能解决您的问题：

if(isset($_POST)){ 
    $username = mysql_real_escape_string($_POST['user']); 
    $password = mysql_real_escape_string($_POST['pass']); 

    // lets check to see if the username already exists 

    $checkuser = mysql_query("SELECT username FROM register WHERE username='$username'");  

    $username_exist = mysql_num_rows($checkuser); 

    if($username_exist > 0){ 
        echo "I'm sorry but the username you specified has already been taken. Please pick another one."; 
        unset($username); 
        exit(); 
    }  

    // if no errors present with the username 
    // use a query to insert the data into the database. 

    $query = ("INSERT INTO register (username, password) VALUES ('$username', '$password')"); 
    mysql_query($query) or die(mysql_error()); 
    mysql_close(); 
} else {
    echo "No form submission detected.";
}

如果您仍有问题，我想查看您提交到此页面的表单以及register的表格布局。

于 2013-06-25T22:31:15.657 回答