Online PHP editor | refs for GOpmB

<?php $html = <<<HTML This is <h2>H2 nummer 1</h2> and this is This is <h2>H2 nummer 2</h2> This is <h2>H2 nummer 3</h2> HTML; function replace_text_wps($content) { return preg_replace_callback('#<h2>(.*?)</h2>#', function ($m) { static $h2Count = 0; return sprintf('<h2 id="%s">%s</h2>', ++$h2Count, $m[1]); }, $content); } echo replace_text_wps($html);