Detailed introduction to sending emails in php

Requirements: In a certain system, after uploading a product's patch file or releasing product update information, an email needs to be sent to the users who use the product (a large number of users). After sending, it will prompt that the sending is complete! Our commonly used PHP code is written as follows:

1. php Asynchronous email sending problem

Introduction: Requirements: In a certain system Here, after uploading the patch file of a product or releasing the product update information, you need to send an email to the users who use the product (the number of users is large). After sending, it will prompt that the sending is completed! Our commonly used PHP code is written as follows:

2. Detailed discussion on PHP sending email method

Introduction: Sending emails to customers is a common function in website applications. The SMTP protocol seems simple and contains a lot of information, but it is not easy to completely understand the identity and relationship between the client and the server. This article briefly explains the identity and conditions in the SMTP exchange process, so that those who are new to SMTP development can have a clear idea of ​​how to deal with it. Please correct any errors. Let’s first talk about the basic principles of SMTP

3. PHP encodes email addresses to prevent them from being collected by spam programs

Introduction: PHP Encoded Email Addresses The following code can encode any email address into an html character entity to prevent it from being collected by spammers. ​ function encode_email($email='info@domain.com', $linkText='Contact Us', $attrs ='class="emailencoder"

##4. php socket sends emails through smtp (can bring attachments)

Introduction: php socket sends emails through smtp (can bring attachments) //define("SOL", "n"); define("EOL", "rn"); define("SMTP_HOST", "smtp.163.com");//SMTP server define("SMTP_P

5. PHPMailer PHP Mail Sending Class

Introduction: 1. Introduction to PHPMailer PHPMailer is a powerful PHP email sending class. It can send emails more conveniently, and can also send attachments and HTML format emails. It can also use an SMTP server to send emails. Since PHP's built-in mail() function is not perfect, it can only send text e-mails, and the mail() function can only be applied to Linux servers. Another biggest problem is that emails sent using the mail() function cannot be used. For identity verification, many emails

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