What are the differences between sending emails in HTML and text format using PHP?

When sending emails in HTML format using PHP, you can include rich content such as images, links, and styling. However, some email clients may not support HTML emails or may block them for security reasons. Sending emails in text format ensures that the content is displayed consistently across all email clients, but it lacks the visual appeal of HTML emails. 

// Sending an email in HTML format
$to = "recipient@example.com";
$subject = "HTML Email Test";
$message = "<html><body><h1>Hello, this is an HTML email!</h1></body></html>";
$headers = "MIME-Version: 1.0" . "\r\n";
$headers .= "Content-type:text/html;charset=UTF-8" . "\r\n";
mail($to, $subject, $message, $headers);

// Sending an email in text format
$to = "recipient@example.com";
$subject = "Text Email Test";
$message = "Hello, this is a text email!";
$headers = "From: sender@example.com";
mail($to, $subject, $message, $headers);

Keywords

HTML text format email PHP differences

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