What potential errors or issues could lead to a 404 error when trying to access phpinfo.php?

A potential issue that could lead to a 404 error when trying to access phpinfo.php is if the file is not located in the correct directory or if the file name is misspelled. To solve this issue, ensure that the phpinfo.php file is located in the root directory of the web server and that the file name is spelled correctly.

<?php
// phpinfo.php file
phpinfo();
?>