How can different server environments affect the functionality of PHP code for sending emails?

Different server environments can affect the functionality of PHP code for sending emails due to variations in server configurations, such as SMTP settings or restrictions on outgoing emails. To ensure consistent email delivery, it is recommended to use a reliable SMTP service like Gmail or SendGrid, which provides secure and reliable email sending capabilities. By configuring PHP to use an external SMTP server, you can bypass any server-specific limitations and improve the chances of successful email delivery. 

// Example PHP code using PHPMailer library to send emails via Gmail SMTP

use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\Exception;

require 'vendor/autoload.php';

$mail = new PHPMailer(true);

try {
    //Server settings
    $mail->isSMTP();
    $mail->Host = 'smtp.gmail.com';
    $mail->SMTPAuth = true;
    $mail->Username = 'your@gmail.com';
    $mail->Password = 'yourpassword';
    $mail->SMTPSecure = 'ssl';
    $mail->Port = 465;

    //Recipient
    $mail->setFrom('your@gmail.com', 'Your Name');
    $mail->addAddress('recipient@example.com', 'Recipient Name');

    //Content
    $mail->isHTML(true);
    $mail->Subject = 'Subject';
    $mail->Body = 'Email body content';

    $mail->send();
    echo 'Email sent successfully';
} catch (Exception $e) {
    echo "Message could not be sent. Mailer Error: {$mail->ErrorInfo}";
}

Keywords

server environments PHP code sending emails functionality impact

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