Curl php script to grab nodes fails

No idea hot to do that. $output gets data from loop so how could I start it before the loop? Not a PHP genius just yet so please bear with me...

Did not know you could initialize a variable like that.

<?php
function get_url($url)
{
     $curl = curl_init();
     curl_setopt($curl, CURLOPT_HEADER, 0);
     curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
     curl_setopt($curl, CURLOPT_URL, $url);
     $data = curl_exec($curl);
     curl_close($curl);
     return $data;
}

function get_url_data()
{
     $xml_content = get_url("http://wordpress.org/development/feed/");
     $dom = new DOMDocument();
     @$dom->loadXML($xml_content);
     $xpath = new DomXPath($dom);
     $content_title = $xpath->query('//channel//title/text()');
     return $content_title;
}


function print_url_data()
{
     $output = '';
     $content = get_url_data();
     foreach ($content as $value)
     {
          $output .= $value->nodeValue . "<br />";
     }
     return $output;
}

echo print_url_data();
?>

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Still gave me PHP Parse error:  syntax error, unexpected T_VARIABLE in /opt/local/www/php/curl.php on line 25

<?php
function get_url($url)
{
     $curl = curl_init(); // start url grabber
     curl_setopt($curl, CURLOPT_HEADER, 0);
     curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
     curl_setopt($curl, CURLOPT_URL, $url);
     $data = curl_exec($curl);
     curl_close($curl);
     return $data;
}

function get_url_data()
{
     #$xml_content = get_url("http://wordpress.org/development/feed/");
     $xml_content = get_url("http://wordpress.org/news/feed/");
     $dom = new DOMDocument();
     $dom->loadXML($xml_content);
     $xpath = new DomXPath($dom); 
     $content_title = $xpath->query('//channel//title/text()');
     return $content_title;
}


function print_url_data()
{
     $output = ''; // to initialize the variable
     $content = get_url_data();
     foreach ($content as $value)
     {
          $output .= $value->nodeValue . "<br />";
     }
     return $output;
}

echo print_url_data();
?>

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works. Do not know why I got the error before. Thanks for all the help. Will now need to read on how to work with Xpath to grab H1. Thanks again