<?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('- ',$k/2-$k%2).($k%2?'-':'');} $a=str_repeat('_',$n=strlen($o)); echo("$a\n\n\n$o\n\n$a\n");
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