how to change laravel directory from storage/app/public to public/media

Please i want to change the default laravel configuration from storage/app/public to public/media on the server. In localhost it worked with storage:link but on the server it isn't working even after adding a symlink. Below is my symlink code.

<?php symlink('/home/cemo/cem/storage/app/public','/home/cem/public_html');

via Chebli Mohamed