doc = new DOMDocument(); $this->doc->loadXML($data); mb_substitute_character("none"); $error = libxml_get_last_error(); // libxml compiled without iconv? if ($error && $error->code == 32) { if (preg_match('/^(<\?xml[\t\n\r ].*?encoding[\t\n\r ]*=[\t\n\r ]*["\'])(.+?)(["\'].*?\?>)/s', $data, $matches) === 1) { $data = mb_convert_encoding($data, 'UTF-8', $matches[2]); $data = preg_replace('/^<\?xml[\t\n\r ].*?\?>/s', $matches[1] . "UTF-8" . $matches[3] , $data); if ($data) { libxml_clear_errors(); $this->doc = new DOMDocument(); $this->doc->loadXML($data); $error = libxml_get_last_error(); } } } // some terrible invalid unicode entity? if ($error) { foreach(libxml_get_errors() as $err) { if ($err->code == 9) { // remove dangling bytes $data = mb_convert_encoding($data, 'UTF-8', 'UTF-8'); // apparently not all UTF-8 characters are valid for XML $data = preg_replace('/[^\x{0009}\x{000a}\x{000d}\x{0020}-\x{D7FF}\x{E000}-\x{FFFD}]+/u', ' ', $data); if ($data) { libxml_clear_errors(); $this->doc = new DOMDocument(); $this->doc->loadXML($data); $error = libxml_get_last_error(); } break; } } } $this->error = ""; if($error) { foreach(libxml_get_errors() as $error) { if($error->level == LIBXML_ERR_FATAL) { $this->error = $this->format_error($error); break; //break here because currently we only show one error } } } libxml_clear_errors(); $this->items = array(); } function init() { $root = $this->doc->firstChild; $xpath = new DOMXPath($this->doc); $xpath->registerNamespace('atom', 'http://www.w3.org/2005/Atom'); $xpath->registerNamespace('atom03', 'http://purl.org/atom/ns#'); $xpath->registerNamespace('media', 'http://search.yahoo.com/mrss/'); $xpath->registerNamespace('rdf', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#'); $xpath->registerNamespace('slash', 'http://purl.org/rss/1.0/modules/slash/'); $xpath->registerNamespace('dc', 'http://purl.org/dc/elements/1.1/'); $xpath->registerNamespace('content', 'http://purl.org/rss/1.0/modules/content/'); $this->xpath = $xpath; $root = $xpath->query("(//atom03:feed|//atom:feed|//channel|//rdf:rdf|//rdf:RDF)"); if ($root) { $root = $root->item(0); if ($root) { switch (mb_strtolower($root->tagName)) { case "rdf:rdf": $this->type = $this::FEED_RDF; break; case "channel": $this->type = $this::FEED_RSS; break; case "feed": $this->type = $this::FEED_ATOM; break; default: if( !isset($this->error) ){ $this->error = "Unknown/unsupported feed type"; } return; } } switch ($this->type) { case $this::FEED_ATOM: $title = $xpath->query("//atom:feed/atom:title")->item(0); if (!$title) $title = $xpath->query("//atom03:feed/atom03:title")->item(0); if ($title) { $this->title = $title->nodeValue; } $link = $xpath->query("//atom:feed/atom:link[not(@rel)]")->item(0); if (!$link) $link = $xpath->query("//atom03:feed/atom03:link[not(@rel)]")->item(0); if ($link && $link->hasAttributes()) { $this->link = $link->getAttribute("href"); } $articles = $xpath->query("//atom:entry"); if (!$articles || $articles->length == 0) $articles = $xpath->query("//atom03:entry"); foreach ($articles as $article) { array_push($this->items, new FeedItem_Atom($article, $this->doc, $this->xpath)); } break; case $this::FEED_RSS: $title = $xpath->query("//channel/title")->item(0); if ($title) { $this->title = $title->nodeValue; } $link = $xpath->query("//channel/link")->item(0); if ($link) { if ($link->getAttribute("href")) $this->link = $link->getAttribute("href"); else if ($link->nodeValue) $this->link = $link->nodeValue; } $articles = $xpath->query("//channel/item"); foreach ($articles as $article) { array_push($this->items, new FeedItem_RSS($article, $this->doc, $this->xpath)); } break; case $this::FEED_RDF: $xpath->registerNamespace('rssfake', 'http://purl.org/rss/1.0/'); $title = $xpath->query("//rssfake:channel/rssfake:title")->item(0); if ($title) { $this->title = $title->nodeValue; } $link = $xpath->query("//rssfake:channel/rssfake:link")->item(0); if ($link) { $this->link = $link->nodeValue; } $articles = $xpath->query("//rssfake:item"); foreach ($articles as $article) { array_push($this->items, new FeedItem_RSS($article, $this->doc, $this->xpath)); } break; } } else { if( !isset($this->error) ){ $this->error = "Unknown/unsupported feed type"; } return; } } function format_error($error) { if ($error) { return sprintf("LibXML error %s at line %d (column %d): %s", $error->code, $error->line, $error->column, $error->message); } else { return ""; } } function error() { return $this->error; } function get_link() { return $this->link; } function get_title() { return $this->title; } function get_items() { return $this->items; } function get_links($rel) { $rv = array(); switch ($this->type) { case $this::FEED_ATOM: $links = $this->xpath->query("//atom:feed/atom:link"); foreach ($links as $link) { if (!$rel || $link->hasAttribute('rel') && $link->getAttribute('rel') == $rel) { array_push($rv, $link->getAttribute('href')); } } break; case $this::FEED_RSS: $links = $this->xpath->query("//atom:link"); foreach ($links as $link) { if (!$rel || $link->hasAttribute('rel') && $link->getAttribute('rel') == $rel) { array_push($rv, $link->getAttribute('href')); } } break; } return $rv; } } ?>