Question

我希望通过php在mysql中创建一个数据库但我得到访问被拒绝错误。这是代码：

<form action = "createdb.php" method = "post">
<label for = "dbname">database name to be created</label><br>
<input type = "text" name = "dbname" /><br>
<input type = "submit" name = "submit" value = "submit"/>
</form>

<?php 
if(isset($_POST['submit'])){
$server = 'localhost';
$uname = 'root';
$pass = 'jooko';
$dbname = $_POST['dbname'];
$createdb = "CREATE DATABASE `$dbname`";
$connect = mysql_connect(`$server`,`$uname`,`$pass`);
//$queryuse = "USE '$dbname'";

$result = mysql_query($createdb, $connect);
if(!$result){echo mysql_error();}
?>

任何帮助将不胜感激。谢谢。

Answer 1

弃用通知： Don't use mysql_* functions in new code。它们不再被维护and are officially deprecated。请参阅red box？转而了解prepared statements，并使用PDO或MySQLi - this article将帮助您确定哪个。如果您选择PDO here is a good tutorial。

此外，函数参数中的反引号也会导致问题。这就是PDO的用法。

<form action = "createdb.php" method = "post">
    <label for = "dbname">database name to be created</label><br>
    <input type = "text" name = "dbname" /><br>
    <input type = "submit" name = "submit" value = "submit"/>
</form>

<?php 
if($_SERVER['REQUEST_METHOD'] == 'POST'){
    $server = 'localhost';
    $uname = 'root';
    $pass = 'jooko';
    $dbname = $_POST['dbname'];

    try {
        $pdo = new PDO("mysql:host=".$server.";", $uname, $pass);
        $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

        $dbname = "`".str_replace("`", "``", $dbname)."`";
        $pdo->query("CREATE DATABASE IF NOT EXISTS ".$dbname);

        echo 'Database created.';
    }catch (Exception $e){
        echo $e->getMessage();
    }
}
?>

如果您仍然有访问被拒绝的问题，请检查root密码是否正确。

Answer 2

我做到了。问题是登录数据的$ connect变量中的后引号。不得不删除$ uname和$ pass的后引号...不知道为什么它必须是这样但它的工作原理。谢谢。

通过php在mysql中创建数据库时访问被拒绝错误

2 个答案: