What are the potential pitfalls of using PHP to replace links within <img> tags?

When using PHP to replace links within <img> tags, a potential pitfall is that the replacement might not work correctly if the image URLs are not formatted consistently. To solve this issue, you can use regular expressions to match and replace the URLs within the <img> tags.

&lt;?php
$html = &#039;&lt;img src=&quot;https://example.com/image1.jpg&quot; alt=&quot;Image 1&quot;&gt;&lt;img src=&quot;https://example.com/image2.jpg&quot; alt=&quot;Image 2&quot;&gt;&#039;;
$pattern = &#039;/&lt;img src=&quot;([^&quot;]+)&quot;([^&gt;]*)&gt;/&#039;;
$replacement = &#039;&lt;img src=&quot;new_url_here&quot; $2&gt;&#039;;
$new_html = preg_replace($pattern, $replacement, $html);
echo $new_html;
?&gt;