- array_map: documentation ( source)
- print_r: documentation ( source)
- str_replace: documentation ( source)
- explode: documentation ( source)
<?php
$derp = ",test, derp, hurp,";
$arr = explode(',',str_replace(array(' ,',', ',' , '),array(',',',',','),$derp));
print_R($arr);
$arr = array_map('trim', $arr);
print_R($arr);