Online PHP editor | refs for kdgra

<?php $text = "Line Line Line Line Line Line "; $replace = array("1", "2", "3", "4"); $counter = 0; $text = preg_replace_callback('~<br\s*/?>~', function($m) use($replace, &$counter) { if ($counter === count($replace)) { $counter = 0; } return $replace[$counter++]; }, $text); echo $text;