How to send email in PHP

With the rapid development of modern technology, email has become an indispensable part of people's daily life and work. As website application developers, we need to send various types of emails to the users of our website. PHP is a widely used server-side scripting language with powerful email sending capabilities. This article will introduce how to send emails using PHP.

Basic principles of sending emails in PHP

The main steps of sending emails in PHP can be summarized as the following points:

1. Construct the email header
2 .Construct the email content
3.Connect to the mailbox server
4.Verify identity information
5.Send the email

Construct the email header

Constructing the email header means using PHP header function to specify the header information of the email. Email header information includes sender, recipient, email subject, and other information.

For example:

$to = "receiver@example.com";
$subject = "Email subject";
$headers = "From: sender@example.com ";

In this example, the $to variable specifies the recipient of the email, the $subject variable specifies the subject of the email, and the "From" item specifies the sender of the email. The value of $headers is a string used to specify various email header information. These messages include "From", "Reply-To", "To", "Cc", "Bcc", etc.

Constructing email content

Constructing email content mainly specifies the body content of the email. When sending emails in PHP, you can use two methods to structure email content: text mode and HTML mode.

Text mode:

$message="Email text content";

HTML mode:

$message=" ;