How can PHP be used to retrieve emails from a POP3 server and save them in a MySQL table?

To retrieve emails from a POP3 server and save them in a MySQL table using PHP, you can use a library like PHPMailer to connect to the POP3 server, retrieve emails, parse them, and then insert the relevant information into a MySQL table. You will need to set up a connection to the MySQL database and create a table to store the email data. Additionally, you will need to handle errors and exceptions that may occur during the process.

// Include PHPMailer library
require 'path/to/PHPMailer/PHPMailerAutoload.php';

// Connect to the POP3 server
$mail = new PHPMailer;
$mail->isPop();
$mail->Host = 'pop.example.com';
$mail->Username = 'username';
$mail->Password = 'password';

// Retrieve emails
if ($mail->connect()) {
    $emails = $mail->getMessages();
    
    // Save emails in MySQL table
    $conn = new mysqli('localhost', 'username', 'password', 'database');
    foreach ($emails as $email) {
        $subject = $email->subject;
        $body = $email->body;
        
        $sql = "INSERT INTO emails (subject, body) VALUES ('$subject', '$body')";
        $conn->query($sql);
    }
    
    $conn->close();
} else {
    echo 'Failed to connect to POP3 server';
}