TYPO3 RTE (and link) parser in PHP

parse.php

<?php

// parse all rte tags
$output = $this->pi_RTEcssText($text);

// parse only br and a tags
$output = strip_tags($this->pi_RTEcssText($text, '<br><a>');

// parse only links (link-Tag in the RTE)
$this->htmlParser = t3lib_div::makeInstance("t3lib_parsehtml_proc");
$output = $this->htmlParser->TS_links_rte($this->pi_RTEcssText($text));