How to ping An address using PHP?

How can I use PHP to ping An address TITLE! -- ************************** Meng Xianhui * amxh@21cn.com * elove.heha.net * go.163.com ~ Colorweb ************************** -- HEADBODYBGCOLOR # fffffor#hodpostaction? Ph Ping

How to ping An address using PHP?

If ($ server = '192. 0.0.1 ') | ($ server = 'localhost') | ($ server = getenv ("SERVER_ADDR "))){

Echo"

";

Echo "Fuck Off!
";

Echo"

";
Exit;

} Else {
If ($ server = ""){

Echo "enter url or IP address :";
Exit;
}

$ Ip = getenv ("REMOTE_ADDR ");
$ Hname = getenv ("HTTP_HOST ");

Echo"Your IP is: $ Ip
"
."Trying to ping: $ Server
"
."Using server: $ Hname";

Echo"

";

Echo"STATS:

";

$ Command = "ping-c4 $ server ";

Exec ($ command, $ result, $ rval );

If (count ($ result) <= 0 ){

Echo "no response
";

Echo"

";

Exit;
}

For ($ I = 0; $ I <count ($ result); $ I ++ ){

Echo "$ result [$ I]
";

}
Echo"

";
# Include ("powered.txt ");
}
?>