Online PHP editor | refs for hTIOV

<?php $doc_comment = "test\r\nreturns\rare\r\nreplaced as expected"; print "\n\npreg_replace (broken):\n"; var_dump(preg_replace('/\r\n|\r/', '\n', $doc_comment)); print "\n\npreg_replace (fixed):\n"; var_dump(preg_replace('/\r\n|\r/', "\n", $doc_comment)); print "\n\nstr_replace:\n"; var_dump(str_replace(['\r\n', '\r'], ['\n', '\n'], $doc_comment)); print "\n\nstr_replace (double quotes):\n"; var_dump(str_replace(["\r\n", "\r"], "\n", $doc_comment));