[php] Erreichbarkeit mit PHP testen -> ping

[Cyrill Schumacher]

die CD ROM von der Ex php Bibel hat eine Datei drin, die heißt
ping.php3

===================================
<?
function local_ping($ip) {
 global $SERVER_NAME;

 if(file_exists("/bin/ping")) { $ping="/bin/ping"; }
 elseif(file_exists("/usr/sbin/ping")) { $ping="/usr/sbin/ping"; }
 elseif(file_exists("/usr/bin/ping")) { $ping="/usr/bin/ping"; }
 elseif(file_exists("/usr/local/bin/ping"))
 $ping="/usr/local/bin/ping"; }
 else { $ping="ping"; }
 $fp=popen("$ping -s -n $ip 32 5","r");
 $i=0;
 while(!feof($fp)) {
  $lines[]=fgets($fp,256);
  $i++;
 }
 echo "<a href=\"http://$SERVER_NAME\">$SERVER_NAME</a><br>\n";
 echo $lines[$i-3]."<br>";
 echo $lines[$i-2]."<br>";
 flush();
 pclose($fp);
}

function ping($server) {
 global $SERVER_NAME;
 global $REMOTE_HOST;
 if($server==$SERVER_NAME) { local_ping($REMOTE_HOST); }
 else {
  /* Go back to basics here and don't rely on a url fopen since
     remote servers may not have that option enabled */
  $fp= fsockopen($server,80);
  fputs($fp,"GET /ping.php3?ip=$REMOTE_HOST HTTP/1.0\nHost:
$server\n\n");
  $i=0;
  while(!feof($fp)) {
   $lines[]=fgets($fp,256);
   $i++;
  }
  fclose($fp);
  echo $lines[$i-4];
  echo $lines[$i-3];
  echo $lines[$i-2];
  echo "<P>\n";
  flush();
 }
}

if(isset($ip)) {
 local_ping($ip);
} else {
 echo "Please wait, checking all mirrors...<P>\n";
 flush();
 ping("ca.php.net");
 ping("il.php.net");
 ping("machba.il.php.net");
 ping("no.php.net");
 ping("uk.php.net");
 ping("www.php.net");
}
?>
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____
Cyrill