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][]] = explode('.', $value, 2); } var_export($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:
100.6 ms | 1273 KiB | 4 Q