3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = 'a,b,c(a,b,c),d(a,b(a,b)),e'; $temp = preg_split('/(\w)/', $str, -1, PREG_SPLIT_DELIM_CAPTURE); print_r($temp);
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Array ( [0] => [1] => a [2] => , [3] => b [4] => , [5] => c [6] => ( [7] => a [8] => , [9] => b [10] => , [11] => c [12] => ), [13] => d [14] => ( [15] => a [16] => , [17] => b [18] => ( [19] => a [20] => , [21] => b [22] => )), [23] => e [24] => )

preferences:
292.17 ms | 406 KiB | 460 Q