Выполнение php файла с временным интервалом

<?php
$ip = "151.248.112.125";
$port = "8000";
$ice2_station = "Радио KTKP";
 
$fp = fsockopen("$ip", $port, &$errno, &$errstr, 30);
if(!$fp) {
        $success=2; 
 
 
 
 
echo'<table>
     <tr>
        <td width="100%" colspan="2">
        <img border="0" src="images/offline.gif" width="22" height="22">
        <b><font face="Georgia" size="5" color="#FF0000">'.$ice2_station.' сейчас не работает</font></b></td>
      </tr>
</table>';
}
 
if($success!=2){
 fputs($fp,"GET /status2.xsl HTTP/1.0\r\nUser-Agent: Icecast2 XSL Parser (Mozilla Compatible)\r\n\r\n"); //get status2.xsl
 while(!feof($fp)) {
  $page .= fgets($fp, 1000);
 }
 fclose($fp);
 $page = ereg_replace(".*<pre>", "", $page);
 $page = ereg_replace("</pre>.*", ",", $page);
 
 
 
 $numbers = explode(",",$page);
 $mount = $numbers[0];
 $connections = $numbers[1];
 $stream_n = $numbers[2];
 $listeners = $numbers[3];
 $desc = $numbers[4];
 $cur_song = $numbers[5];
 $str_url = $numbers[6];
 $client_info = $numbers[7];
 $test1 = $numbers[8];
 $mount = $numbers[11];
 $connections = $numbers[12];
 $station =$numbers[13];
 $listeners = $numbers[14];
 $description = $numbers[15];
 $cur_song = $numbers[16];
 $www_url  = $numbers[17];
if (strlen($mount)<2) echo '<table width="100%" style="border-collapse: collapse" bordercolor="#111111" cellpadding="0" cellspacing="0">
<tr>
 <td width="100%"><b><font face="Arial" size="2">
        <tr>
        <td width="100%"><b><font face="Georgia" color="green" size="5">
        <img border="0" src="images/ice2_status/tunes.gif" width="22" height="18">
        '.$ice2_station.' Не Работает! </font></b></td>
      </tr>
      </tr>
         </table>';
    
    else echo 'В эфире:'.$cur_song.'';
    }
 
?>

header("Cache-Control: no-store, no-cache");

header("Cache-Control: no-store, no-cache, must-revalidate");