3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $i='4N4P19N7P1N1P2N2P'; print_r(preg_split('/(?=\w)/',$i)); exit(); //foreach() preg_match_all('/(\d+)(\w)/',$i,$m,2); foreach($m as $p)$o.=str_repeat($p[2]=='N'?'=':'-',$p[1]); $a=str_repeat('_',$n=strlen($o=str_replace('--','- ',$o))); echo("$a\n\n\n$o\n\n$a\n");
based on HJYJC
Output for 4.3.0 - 7.2.0
Array ( [0] => [1] => 4 [2] => N [3] => 4 [4] => P [5] => 1 [6] => 9 [7] => N [8] => 7 [9] => P [10] => 1 [11] => N [12] => 1 [13] => P [14] => 2 [15] => N [16] => 2 [17] => P )