php-swiftmailerHow to log emails sent with Swiftmailer?

Swiftmailer is a popular library for sending emails in PHP. To log emails sent with Swiftmailer, you can use the Swift_Plugins_LoggerPlugin class. This class implements the Swift_Events_EventListener interface and allows you to log all emails sent with Swiftmailer.

Example code

<?php

// Create the Transport
$transport = (new Swift_SmtpTransport('smtp.example.org', 25))
  ->setUsername('your username')
  ->setPassword('your password')
;

// Create the Mailer using your created Transport
$mailer = new Swift_Mailer($transport);

// Create a logger
$logger = new Swift_Plugins_LoggerPlugin(
    new Swift_Plugins_Loggers_ArrayLogger()
);

// Register the logger
$mailer->registerPlugin($logger);

// Create a message
$message = (new Swift_Message('Wonderful Subject'))
  ->setFrom(['[email protected]' => 'John Doe'])
  ->setTo(['[email protected]', '[email protected]' => 'A name'])
  ->setBody('Here is the message itself')
;

// Send the message
$result = $mailer->send($message);

// Dump the log contents
echo $logger->dump();

Output example

== START LOGGING ==
Sending message to: [email protected]
Sending message to: [email protected]

Sent 1 messages

== END LOGGING ==

Code explanation

1. Create the Transport: This creates the transport layer for sending emails.
2. Create the Mailer: This creates the mailer object using the transport layer.
3. Create a logger: This creates a logger object for logging emails sent with Swiftmailer.
4. Register the logger: This registers the logger with the mailer object.
5. Create a message: This creates a message object with the necessary details.
6. Send the message: This sends the message using the mailer object.
7. Dump the log contents: This dumps the log contents to the screen.

Helpful links

• Swiftmailer Documentation
• Swift_Plugins_LoggerPlugin Class

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