How can PHP developers ensure that inline images are properly displayed in emails instead of being sent as attachments?

When sending emails with inline images using PHP, developers should ensure that the images are properly embedded within the HTML content of the email rather than being sent as attachments. This can be achieved by including the images as base64-encoded strings in the HTML content and setting the appropriate Content-Type headers in the email. By doing so, the images will be displayed inline when the recipient opens the email. 

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

// Read the image file
$imageData = base64_encode(file_get_contents($imagePath));

// Define the HTML content with the inline image
$htmlContent = '<html><body><h1>Inline Image</h1><img src="data:image/jpeg;base64,'.$imageData.'"></body></html>';

// Set the appropriate headers
$headers = 'MIME-Version: 1.0' . "\r\n";
$headers .= 'Content-type: text/html; charset=iso-8859-1' . "\r\n";

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

Keywords

PHP inline images email attachments display

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