What are some best practices for sending HTML emails with embedded images using PHP?

When sending HTML emails with embedded images using PHP, it is important to ensure that the images are properly encoded and attached to the email. One common approach is to embed the images as base64 encoded data within the HTML content of the email. This ensures that the images are displayed correctly when the email is opened by the recipient. 

// Define the image path
$imagePath = 'path/to/image.jpg';

// Read the image file
$imageData = file_get_contents($imagePath);

// Encode the image data as base64
$base64Image = base64_encode($imageData);

// Define the HTML content with embedded image
$htmlContent = '<html><body><img src="data:image/jpeg;base64,' . $base64Image . '" /></body></html>';

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

// Send the email with embedded image
mail('recipient@example.com', 'Subject', $htmlContent, $headers);

Keywords

PHP HTML emails embedded images Swift Mailer MIME types

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