Online PHP editor | refs for Y4Q44

<?php $text = 'write {Hello, World!} in either the color {blue} or {red} or {#00AA00} and in either the font {Arial Black} or {Monaco} where both the color and the font are determined randomly'; echo "<ol>" , preg_replace_callback('~{([^}]*)}|(\S+)~', function($m) { if (!isset($m[2])) { return "<li><strong>{$m[1]}</strong></li>\n"; } return "<li>{$m[2]}</li>\n"; }, $text) , "<ol>";