How can PHP developers ensure that HTML content in emails is compatible with different mail clients, such as AOL, to avoid display issues?

When sending HTML content in emails, PHP developers can ensure compatibility with different mail clients, such as AOL, by using inline CSS styles, avoiding complex layouts, and testing the emails across various clients. This helps to prevent display issues caused by inconsistent rendering of HTML elements by different email clients. 

<?php
$to = 'recipient@example.com';
$subject = 'Test Email';
$message = '<html><body><p style="color: #000; font-size: 16px;">This is a test email.</p></body></html>';
$headers = 'MIME-Version: 1.0' . "\r\n";
$headers .= 'Content-type: text/html; charset=iso-8859-1' . "\r\n";
$headers .= 'From: sender@example.com' . "\r\n";

mail($to, $subject, $message, $headers);
?>

Keywords

PHP HTML content emails mail clients compatibility

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