3v4l.org

run code in 300+ PHP versions simultaneously
<?php function toArray($string) { $chars = str_split($string); $array = array_reduce($chars, function($result, $current) { $previous = $result[] = array_pop($result); if (is_numeric($previous) && is_numeric($current)) { $result[] = array_pop($result) . $current; } else { $result[] = $current; } return $result; }, []); return array_slice($array, 1); } $input = '6+4*4+100+444*6*13*14'; print_r(toArray($input));
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 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 ( [0] => 6 [1] => + [2] => 4 [3] => * [4] => 4 [5] => + [6] => 100 [7] => + [8] => 444 [9] => * [10] => 6 [11] => * [12] => 13 [13] => * [14] => 14 )
preferences:
91.1 ms | 1613 KiB | 4 Q