Run only if URL is available

[OhTheNoes]

Is it possible to make this function only work if the RSS feed URL is available? That is, so that it won't display an error if the RSS is missing/unavailable?

 

Much thanks in advance for any help!

 

<?php function parseRSS($url) {
  $feedeed = implode('', file($url));
  $parser = xml_parser_create();
  xml_parse_into_struct($parser, $feedeed, $valueals, $index);
  xml_parser_free($parser);
  foreach($valueals as $keyey => $valueal){
      if($valueal['type'] != 'cdata') {
          $item[$keyey] = $valueal;
}
  }
  $i = 0;
  foreach($item as $key => $value){
      if($value['type'] == 'open') {
          $i++;
          $itemame[$i] = $value['tag'];
      } elseif($value['type'] == 'close') {
          $feed = $values[$i];
          $item = $itemame[$i];
          $i--;
          if(count($values[$i])>1){
              $values[$i][$item][] = $feed;
          } else {
              $values[$i][$item] = $feed;
          }
      } else {
          $values[$i][$value['tag']] = $value['value'];  
      }
  }
  return $values[0];
}
$xml = parseRSS("http://domain.com/feed/");
foreach($xml['RSS']['CHANNEL']['ITEM'] as $item) {
    $fDate = mb_substr ($item['PUBDATE'],5,11);
    echo("<p>Last updated: <a href=\"{$item['LINK']}\">");
    echo($fDate);
    echo("</a></p>");
    break;
}
?>

[bugcoder]

before foreach loop on every varialbe add extra check of isset and !empty like

 

 

if( isset($variable) && !empty($variable)){
   foreach loops
}