Hi, I've been trawling through my search results for ping (and every variation under the sun) and it seems that the system() function and backquotes cannot be executed on my server, I think it's because it is in safe mode. Anyway, does anyone know a way to ping an IP without the use of system () or `s? I got a snippet of php.net on the fsockopen page but the timeout does not work on it:
<?php
// Script created by telefoontoestel
// for info of some kind please send an email to
// telefoontoestel at officexpert dot digitaal dot biz
// get_microtime() function copied from php.net: function microtime() user contributes
// get_microtime function
function get_microtime(){
list($usec, $sec) = @split(" ", microtime());
return ((float)$usec + (float)$sec);
}
// end of get_microtime function
// ping function
function ping($server, $num_pings=4, $size=32, $time_out=15){
if(!is_int($num_pings) || $num_pings < 0) $num_pings = 4;
if(!is_int($size) || $size < 0) $size = 32;
if(!is_int($time_out) || $time_out < 0) $time_out = 15;
$results = Array();
for($i = 0; $i < $size; $i++){
$data .= "\0";
}
$server_ip = gethostbyname($server);
$server_name = $server;
if($server_ip != $server_name) $results[0]["server_name"] = $server_name." [".$server_ip."]";
else $results[0]["server_name"] = $server_ip;
$results[0]["server_ip"] = $server_ip;
$results[0]["bytes"] = $size;
for($i = 1; $i <= $num_pings; $i++){
$start_timer = get_microtime();
if(($handle = @fsockopen("udp://".$server_ip, 7, $errno, $errstr, $time_out)) == false)
if(($handle = @fsockopen($server_ip, 7, $errno, $errstr, $time_out)) == false){
$results[$i]["bytes"] == 0;
$results[$i]["time"] == -1;
continue;
}
@fputs($handle, $data, $size);
$results[$i]["bytes"] = @fgets($handle, $size);
$results[$i]["time"] = round((get_microtime() - $start_timer) * 1000);
$start_timer = 0;
@fclose($handle);
}
return $results;
}
// end of ping function
if(($server = $_GET["server"]) == "") $server = "127.0.0.1";
$result = ping($server);
$lost = 0;
$received = 0;
$send = sizeof($result) - 1;
$max_time = 0;
$min_time = 15000;
$avg_time = 0;
$total_time = 0;
print "Pinging ".$result[0]["server_name"]." with ".$result[0]["bytes"]." bytes of data:<br><br>\n";
for($i = 1; $i < sizeof($result); $i++){
if($result[$i]["time"] == -1){
print "Request timed out<br>\n";
$lost++;
continue;
}
$total_time += $result[$i]["time"];
$received++;
if($result[$i]["time"] > $max_time) $max_time = $result[$i]["time"];
else if($result[$i]["time"] < $min_time) $min_time = $result[$i]["time"];
print "Reply from ".$result[0]["server_ip"].": bytes=".$result[0]["bytes"]." time=".$result[$i]["time"]."ms <br>\n";
}
$avg_time = round($total_time / $send);
print "<br>\n";
print "Ping statistics for ".$result[0]["server_ip"].":<br>\n";
print " Packets: Sent = ".$send.", Received = ".$received.", Lost = ".$lost." (".round((100 / $send) * $lost)."% loss)<br>\n";
print "Approximate roundtrip in milli-seconds:<br>\n";
print " Minimum = ".$min_time."ms, Maximum = ".$max_time."ms, Average = ".$avg_time."ms<br>\n";
?>
It's a superb bit of code and all credit to the author, but can anyone see where the timeout problem is? If so please let me know or if you know of another method, that would be great too.
Either would be much appreciated, thanks in advance.
Shuriken1.
