How can PHP scripts handle the interpretation and recognition of custom links in emails by different email clients?

Email clients can sometimes alter the formatting of custom links in emails, causing them to not be recognized as clickable links. To ensure that custom links are interpreted correctly, PHP scripts can use HTML formatting with the anchor tag (<a>) to create clickable links. By generating HTML code for custom links within emails, PHP scripts can ensure that the links are displayed correctly and clickable in various email clients.

&lt;?php
$customLink = &#039;https://www.example.com/custom-link&#039;;
$emailBody = &#039;Click &lt;a href=&quot;&#039; . $customLink . &#039;&quot;&gt;here&lt;/a&gt; to visit our website.&#039;;

// Send email with custom link
$emailHeaders = &#039;Content-type: text/html; charset=iso-8859-1&#039;;
mail(&#039;recipient@example.com&#039;, &#039;Custom Link Email&#039;, $emailBody, $emailHeaders);
?&gt;