What potential issue could arise when trying to delete an entry and refresh the page using PHP?

When trying to delete an entry and refresh the page using PHP, a potential issue that could arise is that the deletion operation might be triggered again upon page refresh, leading to unintended consequences such as deleting the entry multiple times. To solve this issue, you can implement a redirect after the deletion operation is successfully completed. This way, when the user refreshes the page, they will be redirected to a different page and the deletion operation won't be triggered again.

// Perform deletion operation
// Redirect to a different page after deletion
header("Location: index.php");
exit();