What is the issue with using <img src with a hashtag in the file name in PHP?

When using <img src with a hashtag in the file name in PHP, the hashtag is interpreted as a fragment identifier by the browser. This can cause the image to not load correctly or not be displayed at all. To solve this issue, you can urlencode the file name before using it in the <img src attribute.

&lt;?php
$file_name = &quot;image#1.jpg&quot;;
$file_path = &quot;path/to/images/&quot; . urlencode($file_name);
echo &#039;&lt;img src=&quot;&#039; . $file_path . &#039;&quot; alt=&quot;Image&quot;&gt;&#039;;
?&gt;