3v4l.org

run code in 300+ PHP versions simultaneously
<?php function gradeInList($level_id) { $grade_range = 'n/a-n/a'; $grade_range_arr = explode('-', $grade_range); if ($grade_range_arr['0'] == 'K') { $grade_range_arr['0'] = 0; } if (stripos($grade_range,'N/A') !== false) { return array('N/A'); } $list = array(); foreach (range($grade_range_arr['0'], $grade_range_arr['1']) as $grade) { if ($grade == 0) { $list[] = 'K'; continue; } if ($grade == 1) { $list[] = '1st'; continue; } if ($grade == 2) { $list[] = '2nd'; continue; } if ($grade == 3) { $list[] = '3rd'; continue; } $list[] = $grade . 'th'; } return $list; } print_r(gradeInList(null));

preferences:
34.39 ms | 402 KiB | 5 Q