php获取本机真实IP地址实例代码_php技巧

function getLocalIP() { $preg = "/\A((([0-9]?[0-9])|(1[0-9]{2})|(2[0-4][0-9])|(25[0-5]))\.){3}(([0-9]?[0-9])|(1[0-9]{2})|(2[0-4][0-9])|(25[0-5]))\Z/";//获取操作系统为win2000/xp、win7的本机IP真实地址 exec("ipconfig", $out, $stats); if (!empty($out)) {  foreach ($out AS $row) {   if (strstr($row, "IP") && strstr($row, ":") && !strstr($row, "IPv6")) {    $tmpIp = explode(":", $row);    if (preg_match($preg, trim($tmpIp[1]))) {     return trim($tmpIp[1]);    }   }  } }//获取操作系统为linux类型的本机IP真实地址 exec("ifconfig", $out, $stats); if (!empty($out)) {  if (isset($out[1]) && strstr($out[1], 'addr:')) {   $tmpArray = explode(":", $out[1]);   $tmpIp = explode(" ", $tmpArray[1]);   if (preg_match($preg, trim($tmpIp[0]))) {    return trim($tmpIp[0]);   }  } } return '127.0.0.1';}