private function _do_never_allowed_afterwards($str)
{
static $neverAllowedStrAfterwardsRegex;
if (null === $neverAllowedStrAfterwardsRegex) {
foreach ($this->_never_allowed_str_afterwards as &$neverAllowedStr) {
$neverAllowedStr .= '.*=';
}
unset($neverAllowedStr);
$neverAllowedStrAfterwardsRegex = implode('|', $this->_never_allowed_str_afterwards);
}
$str = preg_replace('#' . $neverAllowedStrAfterwardsRegex . '#isU', $this->_replacement, $str);
return (string) $str;
}