What are the differences between embedding an image in an email using PHP and using HTML?

When embedding an image in an email using PHP, you need to encode the image data as base64 and include it as an attachment. This ensures that the image is displayed correctly across different email clients. On the other hand, when using HTML to embed an image in an email, you simply use the <img> tag with the image URL. However, this method may not work consistently across all email clients. 

// Embedding an image in an email using PHP
$filename = &#039;image.jpg&#039;;
$path = &#039;path/to/image.jpg&#039;;
$data = file_get_contents($path);
$base64 = base64_encode($data);
$cid = md5(uniqid(time()));

$to = &#039;recipient@example.com&#039;;
$subject = &#039;Embedded Image in Email&#039;;
$message = &#039;&lt;html&gt;&lt;body&gt;&#039;;
$message .= &#039;&lt;img src=&quot;data:image/jpeg;base64,&#039;.$base64.&#039;&quot; alt=&quot;Embedded Image&quot; /&gt;&#039;;
$message .= &#039;&lt;/body&gt;&lt;/html&gt;&#039;;
$headers = &#039;MIME-Version: 1.0&#039; . &quot;\r\n&quot;;
$headers .= &#039;Content-Type: text/html; charset=ISO-8859-1&#039; . &quot;\r\n&quot;;
$headers .= &#039;Content-Disposition: inline&#039; . &quot;\r\n&quot;;
$headers .= &#039;Content-ID: &lt;&#039;.$cid.&#039;&gt;&#039; . &quot;\r\n&quot;;

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

Keywords

PHP email embedding image HTML

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