- print_r: documentation ( source)
- str_replace: documentation ( source)
- preg_replace: documentation ( source)
- strtolower: documentation ( source)
<?php
$journalName= "ONN &profit non";
$journalName = strtolower(str_replace('&', '' ,preg_replace('/\s+/', '_', $journalName)));
print_r($journalName);