Download a URL’s Content Using PHP cURL

The Code

/* gets the data from a URL */
function get_data($url)
{
 $ch = curl_init();
 $timeout = 5;
 curl_setopt($ch,CURLOPT_URL,$url);
 curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
 curl_setopt($ch,CURLOPT_CONNECTTIMEOUT,$timeout);
 $data = curl_exec($ch);
 curl_close($ch);
 return $data;
}

copy/* gets the data from a URL */
function get_data($url)
{
  $ch = curl_init();
  $timeout = 5;
  curl_setopt($ch,CURLOPT_URL,$url);
  curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
  curl_setopt($ch,CURLOPT_CONNECTTIMEOUT,$timeout);
  $data = curl_exec($ch);
  curl_close($ch);
  return $data;
}

The Usage

$returned_content = get_data('http://davidwalsh.name');copy$returned_content = get_data('http://davidwalsh.name');

Alternatively you can use the PHP DOM:
$keywords = array();
$domain = array(‘http://davidwalsh.name‘);
$doc = new DOMDocument;
$doc->preserveWhiteSpace = FALSE;
foreach ($domain as $key => $value) {
@$doc->loadHTMLFile($value);
$anchor_tags = $doc->getElementsByTagName(‘a’);
foreach ($anchor_tags as $tag) {
$keywords[] = strtolower($tag->nodeValue);
}
}
Keep in mind this is not a tested piece of code, I took parts from a working script I have created and cut out several of the checks I’ve put in to remove whitespace, duplicates, and more.