Question

我有一个简单的'即将推出'页面，我将订阅电子邮件，我打算插入到mysql数据库中。

之前我运行了代码，但现在回到它1-2周后，似乎有一些问题。

基本上只涉及2个文件：index.html和subscribe.php。 index.html实际上是“即将推出”页面，它会调用subscribe.php实际将电子邮件插入数据库，前提是它是有效的电子邮件，不是重复的等等。

subscribe.php的代码如下。它真的很简单。

不要以前这个WAS工作！但是现在似乎在使用PDO的行中出现了“未找到类PDO ......”错误：

<?php

function isValidEmail( $email = null )
{
    return preg_match( "/^
    [\d\w\/+!=#|$?%{^&}*`'~-]
    [\d\w\/\.+!=#|$?%{^&}*`'~-]*@
    [A-Z0-9]
    [A-Z0-9.-]{0,61}
    [A-Z0-9]\.
    [A-Z]{2,6}$/ix", $email );
}

try {
    // Connect to the SQLite Database.
    $db = new PDO('mysql:host=hostnamehere;dbname=dbnamehere', 'usernamehere', 'passwordhere');
} catch(Exception $e) {
    die('connection_unsuccessful');
}

/* Check if table exists */
$db->exec('CREATE TABLE IF NOT EXISTS subscribers (email VARCHAR(255), time VARCHAR(255))');

/* Check if email has been posted */
if ( isset($_POST['email']) ) {

    /* Validate email */
    if ( isValidEmail($_POST['email']) ) {

        /* Check for duplication */
        $query = $db->prepare('SELECT COUNT(*) AS count FROM subscribers WHERE email = :email');  
        $query->execute(array(':email' => $_POST['email']));
        $result = $query->fetch();

        if ( $result['count'] == 0 ) { // E-mail is unique.

            $query = $db->prepare('INSERT INTO subscribers (email, time) VALUES (:email, :time)');  
            $query->execute(array('email' => $_POST['email'], 'time' => date('Y-m-d H:i:s')));

            /* Send mail notification */
            $to = 'newsubscriber@xyz.com'; // Email notified of the new subscription
            $subject = 'New subscriber';
            $message = 'Hi, you have one new subscriber. This is his/her e-mail address: ' . $_POST['email'] . '.';
            $headers = "From:" . $_POST['email'];
            mail($to,$subject,$message,$headers);

            echo 'successful';

        } else { // E-mail is already being used.
            echo 'already_subscribed';
        }

    } else {
        echo 'invalid_email';
    }

}

Answer 1

可能在你的php.ini中禁用了PDO，只需启用它。确保你有

extension=pdo.so
extension=pdo_mysql.so

获取“未找到类PDO”错误

1 个答案: