Are there any best practices or coding standards that should be followed when writing PHP code for email sending?

When sending emails in PHP, it is important to follow best practices to ensure deliverability and avoid being flagged as spam. One common practice is to use a dedicated email library like PHPMailer or SwiftMailer, which handle email sending securely and efficiently. Additionally, always sanitize user input to prevent injection attacks and properly set headers to comply with email standards. 

// Example using PHPMailer library to send an email
use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\Exception;

// Include PHPMailer autoload file
require 'vendor/autoload.php';

// Create a new PHPMailer instance
$mail = new PHPMailer();

// Set up SMTP settings
$mail->isSMTP();
$mail->Host = 'smtp.example.com';
$mail->SMTPAuth = true;
$mail->Username = 'your@example.com';
$mail->Password = 'your_password';
$mail->SMTPSecure = 'tls';
$mail->Port = 587;

// Set email content
$mail->setFrom('from@example.com', 'Your Name');
$mail->addAddress('recipient@example.com', 'Recipient Name');
$mail->Subject = 'Subject of the email';
$mail->Body = 'This is the body of the email';

// Send the email
if(!$mail->send()) {
    echo 'Email could not be sent.';
    echo 'Mailer Error: ' . $mail->ErrorInfo;
} else {
    echo 'Email has been sent';
}

Keywords

PHP email sending coding standards libraries error handling

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