kenmasters/RegEx Example (String Sanitization)

## RegEx Example (String Sanitization)
function clean($string) {
   $string = str_replace(' ', '_', $string); // Replaces all spaces with hyphens.
   $string = preg_replace('/[^A-Za-z0-9_]/', '', $string); // Removes special chars.

   return preg_replace('/_+/', '_', $string); // Replaces multiple hyphens with single one.
}

echo clean("HAnn-a Jane##ll f.  e"); // HAnna_Janell_f_e
	function clean($string) {
	$string = str_replace(' ', '_', $string); // Replaces all spaces with hyphens.
	$string = preg_replace('/[^A-Za-z0-9_]/', '', $string); // Removes special chars.

	return preg_replace('/_+/', '_', $string); // Replaces multiple hyphens with single one.
	}

	echo clean("HAnn-a Jane##ll f. e"); // HAnna_Janell_f_e