3v4l.org

run code in 300+ PHP versions simultaneously
<?php $data = ['status.1', 'status.2', 'status.3', 'country.244', 'country.24', 'country.845', 'pm.4', 'pm.9', 'pm.6']; $result = []; foreach ($data as $value) { [$prefix, $result[$prefix][]] = sscanf($value, '%[^.].%d'); } var_export($result);
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
array ( 'status' => array ( 0 => 1, 1 => 2, 2 => 3, ), 'country' => array ( 0 => 244, 1 => 24, 2 => 845, ), 'pm' => array ( 0 => 4, 1 => 9, 2 => 6, ), )

preferences:
91.97 ms | 1273 KiB | 4 Q