Specific implementation of PHP using smtp class to send emails

With the development of email, more and more websites are beginning to use email functions. Email can provide users with services such as notifications of key information, password resets, news subscriptions, event confirmations, etc. As one of the most popular server scripting languages ​​in the world, PHP also has powerful implementation capabilities in email functions. This article will introduce the specific implementation process of PHP using the smtp class to send emails.

1. Preparation work

Before using the email function, we need to prepare some necessary information:

(1) SMTP server address: For example, we If you use Gmail's SMTP server, its address is "smtp.gmail.com".

(2) SMTP server port number: Set according to different SMTP servers. For example, Gmail uses "465" port.

(3) SMTP account: Generally, it is your email address, such as "example@gmail.com".

(4) SMTP password: the password corresponding to the SMTP account.

(5) Email sender address: for example “example@gmail.com”.

(6) Email recipient address: It can be multiple, such as "user1@example.com, user2@example.com".

2. Writing PHP Code

After preparing the above information, we can start writing code. First we need to introduce the smtp class file:

require_once './smtp.php'; // smtp class file

After introducing the smtp class file, we need to set some necessary configuration information. As follows:

// SMTP address and port number of the mail server
$smtp_server = 'smtp.gmail.com';
$smtp_port = '465';

// SMTP account and password
$smtp_user = 'example@gmail.com';
$smtp_password = 'Your SMTP password';

// Email sender address
$email_from = 'example@gmail.com';

// Email recipient address, you can add multiple recipients, separated by commas
$email_to = 'user1@example.com, user2@example .com';

// Email subject and content
$email_subject = 'This is a test email';
$email_body = 'Hello, this is a test email, thank you s concern. ';

After the above configuration, we can start using the smtp class to send emails:

$smtp = new smtp($smtp_server, $smtp_port, true, $smtp_user, $smtp_password);
$smtp->sendmail($email_to, $email_from, $email_subject, $email_body, 'HTML');

In the above code, we create an smtp class object and use it The sendmail method sends emails. The sendmail method has four parameters:

(1) $email_to: Email recipient address. Multiple recipients can be added, separated by commas.

(2)$email_from: Email sender address.

(3)$email_subject: Email subject.

(4)$email_body: Email body content.

In addition, we can add a fifth parameter, "HTML", to the sendmail method, indicating that the email body content is in HTML format. If the body text is plain text, it can be omitted.

3. Complete PHP code

To sum up, the following is the complete PHP code:

require_once './smtp.php';

$smtp_server = 'smtp.gmail.com';
$smtp_port = '465';
$smtp_user = 'example@gmail.com';
$smtp_password = 'Your SMTP Password';
$email_from = 'example@gmail.com';
$email_to = 'user1@example.com, user2@example.com';
$email_subject = 'This is a test email ';
$email_body = 'Hello, this is a test email, thank you for your attention. ';

$smtp = new smtp($smtp_server, $smtp_port, true, $smtp_user, $smtp_password);
$smtp->sendmail($email_to, $email_from, $email_subject, $email_body , 'HTML');

4. Summary

This article introduces in detail the implementation process of PHP using the smtp class to send emails. By setting the SMTP server address, port number, account number, password, email sender address and email recipient address, you can quickly implement the email sending function by using the sendmail method in the smtp class. It should be noted that the smtp account must support the SMTP service, otherwise the email cannot be sent successfully.

The above is the detailed content of Specific implementation of PHP using smtp class to send emails. For more information, please follow other related articles on the PHP Chinese website!