What are common issues when creating email templates with PHP?

Common issues when creating email templates with PHP include incorrect formatting, missing variables, and improper encoding. To solve these issues, make sure to properly format the email content, include all necessary variables, and encode the email content correctly to avoid any display issues.

// Example of creating an email template with PHP

$emailContent = "
<html>
<head>
<title>Welcome to our website</title>
</head>
<body>
<p>Hello, {username}!</p>
<p>Thank you for signing up on our website.</p>
</body>
</html>
";

// Replace variables in the email template
$emailContent = str_replace("{username}", $username, $emailContent);

// Set the email headers and encoding
$headers = "MIME-Version: 1.0" . "\r\n";
$headers .= "Content-type:text/html;charset=UTF-8" . "\r\n";

// Send the email
mail($to, $subject, $emailContent, $headers);