3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $i='4N4P9N7P1N1P2N2P'; preg_match_all('/(\d+)(\w)/',$i,$m,2); foreach($m as $p){$k=$p[1];$o.=($p[2]=='N')?str_repeat('=',$k):str_repeat('- ',(int)($k/2)).($k%2?'-':'');} $a=str_repeat('_',$n=strlen($o)); $b=str_repeat(' ',$n); echo("$a\n$b\n$b\n$o\n$b\n$a\n$n");
based on rdCU0
Output for 5.0.4 - 7.2.0
Notice: Undefined variable: o in /in/ZCflP on line 5 ______________________________ ====- - =========- - - -=-==- ______________________________ 30
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: o in /in/ZCflP on line 5 ______________________________ ====- - =========- - - -=-==- ______________________________ 30