Mail library in PHP8.0

Recently, PHP8.0 released a new mail library, making it easier to send and receive emails in PHP. This library has powerful features including building emails, sending emails, parsing emails, getting attachments and solving email getting stuck issues.

In many projects, we need to use email for communication and some necessary business operations. The mail library in PHP8.0 allows us to achieve this easily. Next, we'll explore this new mail library and see how to use it in our application.

Install the mail library
First, we need to use Composer to install the PHP8.0 mail library. In our project directory, we can run the following command:

composer require phpmailer/phpmailer

This command will install the PHPMailer library, which is the standard mail library for PHP8.0.

Establishing a connection
Before we use the mail library, we need to establish a connection with the SMTP server. We can use SMTP protocol to send emails. The SMTP server requires an SMTP address and port. Using the mail library in PHP8.0, we can use the following code to establish a connection with the SMTP server:

use PHPMailerPHPMailerPHPMailer;
use PHPMailerPHPMailerException;

require 'vendor/autoload.php ';
$mail = new PHPMailer(true);

try {

//Server settings
$mail->SMTPDebug = SMTP::DEBUG_SERVER;                      //Enable verbose debug output
$mail->isSMTP();                                            //Send using SMTP
$mail->Host       = 'smtp.gmail.com';                       //Set the SMTP server to send through
$mail->SMTPAuth   = true;                                   //Enable SMTP authentication
$mail->Username   = 'yourname@gmail.com';                  //SMTP username
$mail->Password   = 'yourpassword';                         //SMTP password
$mail->SMTPSecure = PHPMailer::ENCRYPTION_SMTPS;            //Enable implicit TLS encryption
$mail->Port       = 465;                                    //TCP port to connect to; use 587 if you have no SSL/TLS support

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

//Content
$mail->isHTML(true);                                          //Set email format to HTML
$mail->Subject = 'Test Email';
$mail->Body    = 'This is a test email.';
$mail->AltBody = 'This is the body in plain text for non-HTML mail clients';

$mail->send();
echo 'Message has been sent';

} catch (Exception $e) {

echo "Message could not be sent. Mailer Error: {$mail->ErrorInfo}";

}

In the above code, we first introduced the PHPMailer library and created a PHPMailer instance. We then set up the SMTP server's address, port number and username, password, and enabled SMTP authentication. We also format and content the email and specify the sender and recipient addresses.

Using the mail library
After setting up the connection with the SMTP server, we can use the mail library of PHP8.0 to send emails. We can use the following code to send an email:

//Content
$mail->isHTML(true); //Set email format to HTML
$mail->Subject = 'Test Email';
$mail->Body = 'This is a test email.';
$mail->AltBody = 'This is the body in plain text for non-HTML mail clients' ;

$mail->send();

The isHTML() method in the above code is used to specify that the content of the email sent is in HTML format. The Subject attribute specifies the subject of the email, the Body attribute specifies the content of the email, and the AltBody attribute specifies the plain text content of the email so that it cannot be viewed using an HTML-formatted email client.

Parsing emails
The mail library of PHP8.0 also provides the function of parsing emails. We can use the following code to parse an email:

// Load the email message
$mail = new PHPMailer();
$mail->setServer('smtp.gmail. com', 'username', 'password');
$mail->setPort('587');
$mail->addAddress('recipient@example.com', 'John Doe') ;

// Retrieve the whole email content
$mail->retrieve();

// Convert the email body to a UTF-8 string
$emailBody = $mail->utf8ize($mail->Body);

// Parse the email using PHP's built-in imap functions
$imapStream = imap_open('{imap.gmail.com:993 /imap/ssl}INBOX', 'username', 'password');
$message = imap_fetchbody($imapStream, 1, "");

// Parse the email body using PHP's built- in DOM functions
$dom = new DOMDocument();
@$dom->loadHTML($emailBody);
$data = array();
$header = $dom-> getElementsByTagName('header')->item(0);
foreach($header->childNodes as $node) {

if ($node->nodeName == 'from') {
    list($name, $email) = explode(' <', $node->nodeValue);
    $data['from_name'] = $name;
    $data['from_email'] = str_replace('>', '', $email);
} elseif ($node->nodeName == 'date') {
    $data['date'] = date('Y-m-d H:i:s', strtotime($node->nodeValue));
} elseif ($node->nodeName == 'subject') {
    $data['subject'] = $node->nodeValue;
}

}

retrieve( in the above code ) method is used to retrieve the contents of the entire email. After converting the email content into UTF-8 format, we can use PHP's built-in imap function to parse the email. We can also use PHP's DOM functions to parse email header information.

Summary
PHP8.0’s mail library makes it easier to use email in PHP applications. The library provides powerful functionality including building emails, sending emails, parsing emails and getting attachments of emails. By using PHPMailer library we can easily implement mail functionality and use it in our application.

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