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39 * Class for parsing title from RSS feed, and keep default encoding (UTF-8)
40 * Created: Sep 12, 2011
42 class DashletRssFeedTitle {
43 public $defaultEncoding = "UTF-8";
44 public $readBytes = 8192;
47 public $contents = "";
49 public $endWith = "...";
50 public $xmlEncoding = false;
51 public $fileOpen = false;
53 public function __construct($url) {
57 public function generateTitle() {
58 if ($this->readFeed()) {
60 if (!empty($this->title)) {
61 $this->convertEncoding();
69 * @todo use curl with waiting timeout instead of fopen
71 public function readFeed() {
73 $fileOpen = @fopen($this->url, 'r');
75 $this->fileOpen = true;
76 $this->contents = fread($fileOpen, $this->readBytes);
87 public function getTitle() {
89 preg_match("/<title>.*?<\/title>/i", $this->contents, $matches);
90 if (isset($matches[0])) {
91 $this->title = str_replace(array('<![CDATA[', '<title>', '</title>', ']]>'), '', $matches[0]);
95 public function cutLength() {
96 if (mb_strlen(trim($this->title), $this->defaultEncoding) > $this->cut) {
97 $this->title = mb_substr($this->title, 0, $this->cut, $this->defaultEncoding) . $this->endWith;
101 private function _identifyXmlEncoding() {
103 preg_match('/encoding\=*\".*?\"/', $this->contents, $matches);
104 if (isset($matches[0])) {
105 $this->xmlEncoding = trim(str_replace('encoding="', '"', $matches[0]), '"');
109 public function convertEncoding() {
110 $this->_identifyXmlEncoding();
111 if ($this->xmlEncoding && $this->xmlEncoding != $this->defaultEncoding) {
112 $this->title = iconv($this->xmlEncoding, $this->defaultEncoding, $this->title);