3v4l.org

run code in 300+ PHP versions simultaneously
<?php $numers = array('User1' => '1', 'User2' => '123,456'); foreach($numers as $user => $num){ echo $user . PHP_EOL; if(strpos($num, ',') === FALSE) { echo 'Tel1:' . $num .PHP_EOL; } else { $nums = explode(',', $num); foreach($nums as $key => $temp){ echo 'Tel' . ($key + 1) . ':' . $temp .PHP_EOL; } } }
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14
User1 Tel1:1 User2 Tel1:123 Tel2:456
preferences:
109.21 ms | 408 KiB | 5 Q