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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) {
58 * Yeah, assign an empty string, because unset(classproperty) will cause an exception in php 5.3.3
61 public function __destruct() {
65 public function generateTitle() {
66 if ($this->readFeed()) {
68 if (!empty($this->title)) {
69 $this->convertEncoding();
77 * @todo use curl with waiting timeout instead of fopen
79 public function readFeed() {
81 $fileOpen = @fopen($this->url, 'r');
83 $this->fileOpen = true;
84 $this->contents = fread($fileOpen, $this->readBytes);
95 public function getTitle() {
97 preg_match("/<title>.*?<\/title>/i", $this->contents, $matches);
98 if (isset($matches[0])) {
99 $this->title = str_replace(array('<![CDATA[', '<title>', '</title>', ']]>'), '', $matches[0]);
103 public function cutLength() {
104 if (mb_strlen(trim($this->title), $this->defaultEncoding) > $this->cut) {
105 $this->title = mb_substr($this->title, 0, $this->cut, $this->defaultEncoding) . $this->endWith;
109 private function _identifyXmlEncoding() {
111 preg_match('/encoding\=*\".*?\"/', $this->contents, $matches);
112 if (isset($matches[0])) {
113 $this->xmlEncoding = trim(str_replace('encoding="', '"', $matches[0]), '"');
117 public function convertEncoding() {
118 $this->_identifyXmlEncoding();
119 if ($this->xmlEncoding && $this->xmlEncoding != $this->defaultEncoding) {
120 $this->title = iconv($this->xmlEncoding, $this->defaultEncoding, $this->title);