PHP implementation of online port scanning example code_PHP tutorial

点击这里返回");
}
 // 定义提交错误IP的提示信息
$ips=explode(".",$remoteip);
 // 用.分割IP地址
 if (intval($ips[0])<1 or intval($ips[0])>255 or intval($ips[3])<1 or intval($ips[3]>255)) err();
// 如果第一段和最后一段IP的数字小于1或者大于255，则提示出错
 if (intval($ips[1])<0 or intval($ips[1])>255 or intval($ips[2])<0 or intval($ips[2]>255)) err();
// 如果第二段和第三段IP的数字小于0或者大于255，则提示出错
$closed=此端口目前处于关闭状态。;
$opened=This port is currently open!;
$close="Close";
$open="Open";
$port=array(21,23,25,79,80,110,135,137,138,139,143,443,445,1433,3306,3389);
$msg=array(Ftp,Telnet,Sm tp ,Finger,Http,Pop3,Location Service,Netbios-NS,Netbios-DGM,Netbios-SSN,IMAP,Https,Microsoft-DS,MSSQL,MYSQL,Terminal Services);
// Pass After checking the IP format, use an array to define the service name and status corresponding to each port
echo "