PHP obtains IP, IP address and connection number example code_PHP tutorial

//Get the detailed information of the IP with the highest number of connections
$top = 10;
//Get the detailed information of the IP
$get_location = true;
//Reverse IP, used to obtain spiders, the speed is slower after opening
$reverse = FALSE;
//$reverse = TRUE;

ini_set(extension_dir,dirname(__FILE__));
ini_set(enable_dl,TRUE);
if(!dl("php_curl.dll")){
exit(Can load curl .);
}
$content = `netstat -an -p TCP`;
$regex = "/s TCPs d .d .d .d :(d )s (d .d .d .d ):d s /sm";
$table = array();
//1, number of connections/2, local ip/3, other party ip
/**
* Port/ip is unique
*/
if(preg_match_all($regex,$content,$result)){
foreach($result[1] as $i=>$port){
if(isset($table[$port .:.$result[2][$i]]))
                                                                                                                    :.$result[2][$i]] = 1;
}
$curl = curl_init();
curl_setopt($curl,CURLOPT_TIMEOUT,5);
curl_setopt($curl, CURLOPT_HEADER, 0);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, TRUE);
$i = 0;
$count = 0;
if(asort($table))
foreach( $table as $key=>$times){
$ip = substr(strstr($key,:),1);
$port = substr($key,0,strpos($key,: ));
$i ;
echo " Number of connections: ",$times, - ,$key;
if(!$get_location || $i continue;
}
if( $port==80) $count = $times;
if($ip!==127.0.0.1 || $ip!==0.0.0.0){
$host = $reverse ? gethostbyaddr($ip ) : $ip;
if($host==$ip){
curl_setopt($curl,CURLOPT_URL, "http://int.dpool.sina.com.cn/iplookup/iplookup.php?format =txt&ip=".$ip);
$location = curl_exec($curl);
echo "(".preg_replace(/(s|d|.)/,,$location).")";
} else {
echo "(".$host.")";
}
}
}
echo " ",All(80):,$count;
}
?>

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