xml - PHP: createTextNode as object -


i have script reads xml tags , prints on page. items links (without html tags) made function adds html link tags it. however, links rendered strings , not html.

i know because used createtextnode, need returns object , not string.

heres code

function get_feeds() {     $feeds = array(         array(             'name' => 'agenda',             'url' => 'http://www.beleefdokkum.nl//pages/rss.aspx?type=agenda',             'get' => array('title', 'description', 'link'),             'scope' => array(1, 10)         ),         array(             'name' => 'news',             'url' => 'http://www.beleefdokkum.nl//pages/rss.aspx?type=nieuws',             'get' => array('title', 'description', 'link'),             'scope' => array(1, 10)         ),         array(             'name' => 'social media',             'url' => 'http://api.twitter.com/1/statuses/user_timeline.rss?screen_name=nofriesland',             'get' => array('description'),             'scope' => array(1, 10)         )     );      $result = new domdocument();      function linkify($text) {         $text = preg_replace('/(https?:\/\/\s+)/', '<a href="\1" class="preg-links">\1</a>', $text);         $text = preg_replace('/(^|\s)@(\w+)/', '\1@<a href="http://twitter.com/\2" class="preg-links">\2</a>', $text);         $text = preg_replace('/(^|\s)#(\w+)/', '\1#<a href="http://search.twitter.com/search?q=%23\2" class="preg-links">\2</a>', $text);         return $text;     }      foreach ($feeds $feed) {         $xml = new domdocument();         $xml->load($feed['url']);         $frame = $result->createelement('div');         $frame->setattribute('class', 'feed_frame');         $result->appendchild($frame);         $name = $result->createelement('h1', $feed['name']);         $name->setattribute('class', 'feed_name');         $frame->appendchild($name);         $content = $result->createelement('div');         $content->setattribute('class', 'feed_content');         $frame->appendchild($content);         ($i = $feed['scope'][0]; $i < $feed['scope'][1]; $i++) {             $item = $result->createelement('span');             $item->setattribute('class', 'feed_item');             $content->appendchild($item);             foreach ($feed['get'] $get) {                 $object = $result->createelement('p');                 $text = $result->createtextnode(linkify($xml->getelementsbytagname($get)->item($i)->nodevalue));                 $object->appendchild($text);                 $object->setattribute('class', 'feed_'.$get);                 $item->appendchild($object);             }         }     }     return $result->savehtml(); }

there might other ways, solve creating both text nodes , anchors you're performing regular expression matching:

$node = $dom->createelement('p'); linkify($doc, $node, 't1 @test t2 #test t3 http://www.stackoverflow.com t4');

the linkify() function takes existing node , creates text nodes , anchors based on given string.

function linkify($dom, $node, $text) {     // combine possible patterns in 1 expression     $re = '/(https?:\/\/\s+)|(?:^|\s)@(\w+)|(?:^|\s)#(\w+)/';     // capture pattern offsets     $flags = preg_set_order | preg_offset_capture;      $offset = 0;     if (preg_match_all($re, $text, $matches, $flags)) {         foreach ($matches $match) {             // set start , end markers of matched pattern             $start = $match[0][1];             $end = $match[0][1] + strlen($match[0][0]);             // process each pattern based on resulting matches             if (isset($match[3])) { // twitter hash                 $start += 2; // skip space , #                 $url = 'http://search.twitter.com/search?q=' .                      urlencode("#{$match[3][0]}");                 $anchor = anchor($dom, $url, $match[3][0]);             } elseif (isset($match[2])) { // twitter user                 $start += 2;                 $url = 'http://twitter.com/' . urlencode($match[2][0]);                 $anchor = anchor($dom, $url, $match[2][0]);             } else { // standard url                 $anchor = anchor($dom, $match[1][0], $match[1][0]);             }              if ($start > $offset) {                 // have text in between previous match (or start) , here                 $str = substr($text, $offset, $start - $offset);                 $node->appendchild($dom->createtextnode($str));             }             // insert new anchor             $node->appendchild($anchor);             // keep track of last match marker             $offset = $end;         }         // add last text node         $node->appendchild($dom->createtextnode(substr($text, $offset)));     } }

this output when run ->savehtml():

<p>   t1     @<a href="http://twitter.com/datibbaw" class="preg-links">datibbaw</a>    t2    #<a href="http://search.twitter.com/search?q=%23test" class="preg-links">test</a>   t3     <a href="http://www.stackoverflow.com" class="preg-links">http://www.stackoverflow.com</a>    t4</p>

i'm using convenience function create anchors:

function anchor($dom, $url, $text) {     $anchor = $dom->createelement('a', $text);     $anchor->setattribute('href', $url);     $anchor->setattribute('class', 'preg-links');      return $anchor; }

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