php 获取 ip 地址 函数:
function getIP () //取IP函数{ ????global $_SERVER;if (getenv(‘HTTP_CLIENT_IP‘)) {$ip = getenv(‘HTTP_CLIENT_IP‘);} else if (getenv(‘HTTP_X_FORWARDED_FOR‘)) {$ip = getenv(‘HTTP_X_FORWARDED_FOR‘);} else if (getenv(‘REMOTE_ADDR‘)) {$ip = getenv(‘REMOTE_ADDR‘);} else {$ip = $_SERVER[‘REMOTE_ADDR‘];}return $ip;}
扩展：
<?php class clientGetObj{ ????function getBrowse() ????{ ????global $_SERVER; ????$Agent = $_SERVER[‘HTTP_USER_AGENT‘]; ?????$browser = ‘‘; ????$browserver = ‘‘; ????$Browser = array(‘Lynx‘, ‘MOSAIC‘, ‘AOL‘, ‘Opera‘, ‘JAVA‘, ‘MacWeb‘, ‘WebExplorer‘, ‘OmniWeb‘); ?????for($i = 0; $i <= 7; $i ++){ ????????if(strpos($Agent, $Browsers[$i])){ ????????????$browser = $Browsers[$i]; ?????????????$browserver = ‘‘; ????????} ????} ????if(ereg(‘Mozilla‘, $Agent) && !ereg(‘MSIE‘, $Agent)){ ????????$temp = explode(‘(‘, $Agent); ?????????$Part = $temp[0]; ????????$temp = explode(‘/‘, $Part); ????????$browserver = $temp[1]; ????????$temp = explode(‘ ‘, $browserver); ?????????$browserver = $temp[0]; ????????$browserver = preg_replace(‘/([d.]+)/‘, ‘1‘, $browserver); ????????$browserver = $browserver; ????????$browser = ‘Netscape Navigator‘; ?????} ????if(ereg(‘Mozilla‘, $Agent) && ereg(‘Opera‘, $Agent)) { ????????$temp = explode(‘(‘, $Agent); ????????$Part = $temp[1]; ?????????$temp = explode(‘)‘, $Part); ????????$browserver = $temp[1]; ????????$temp = explode(‘ ‘, $browserver); ?????????$browserver = $temp[2]; ????????$browserver = preg_replace(‘/([d.]+)/‘, ‘1‘, $browserver); ????????$browserver = $browserver; ????????$browser = ‘Opera‘; ?????} ????if(ereg(‘Mozilla‘, $Agent) && ereg(‘MSIE‘, $Agent)){ ????????$temp = explode(‘(‘, $Agent); ????????$Part = $temp[1]; ?????????$temp = explode(‘;‘, $Part); ????????$Part = $temp[1]; ????????$temp = explode(‘ ‘, $Part); ????????$browserver = $temp[2]; ?????????$browserver = preg_replace(‘/([d.]+)/‘,‘1‘,$browserver); ????????$browserver = $browserver; ????????$browser = ‘Internet Explorer‘; ????} ????if($browser != ‘‘){ ?????????$browseinfo = $browser.‘ ‘.$browserver; ????} else { ????????$browseinfo = false; ????} ????return $browseinfo; ????} ????function getIP () ?????{ ????global $_SERVER; ????if (getenv(‘HTTP_CLIENT_IP‘)) { ????????$ip = getenv(‘HTTP_CLIENT_IP‘); ????} else if (getenv(‘HTTP_X_FORWARDED_FOR‘)) { ????????$ip = getenv(‘HTTP_X_FORWARDED_FOR‘); ?????} else if (getenv(‘REMOTE_ADDR‘)) { ????????$ip = getenv(‘REMOTE_ADDR‘); ????} else { ????????$ip = $_SERVER[‘REMOTE_ADDR‘]; ????} ????return $ip; ?????} ????function getOS () ????{ ????global $_SERVER; ????$agent = $_SERVER[‘HTTP_USER_AGENT‘]; ????$os = false; ????if (eregi(‘win‘, $agent) && strpos($agent, ‘95‘)){ ?????????$os = ‘Windows 95‘; ????} ????else if (eregi(‘win 9x‘, $agent) && strpos($agent, ‘4.90‘)){ ????????$os = ‘Windows ME‘; ?????} ????else if (eregi(‘win‘, $agent) && ereg(‘98‘, $agent)){ ????????$os = ‘Windows 98‘; ????} ????else if (eregi(‘win‘, $agent) && eregi(‘nt 5.1‘, $agent)){ ?????????$os = ‘Windows XP‘; ????} ????else if (eregi(‘win‘, $agent) && eregi(‘nt 5‘, $agent)){ ????????$os = ‘Windows 2000‘; ????} ?????else if (eregi(‘win‘, $agent) && eregi(‘nt‘, $agent)){ ????????$os = ‘Windows NT‘; ????} ????else if (eregi(‘win‘, $agent) && ereg(‘32‘, $agent)){ ?????????$os = ‘Windows 32‘; ????} ????else if (eregi(‘linux‘, $agent)){ ????????$os = ‘Linux‘; ????} ????else if (eregi(‘unix‘, $agent)){ ?????????$os = ‘Unix‘; ????} ????else if (eregi(‘sun‘, $agent) && eregi(‘os‘, $agent)){ ????????$os = ‘SunOS‘; ????} ?????else if (eregi(‘ibm‘, $agent) && eregi(‘os‘, $agent)){ ????????$os = ‘IBM OS/2‘; ????} ????else if (eregi(‘Mac‘, $agent) && eregi(‘PC‘, $agent)){ ?????????$os = ‘Macintosh‘; ????} ????else if (eregi(‘PowerPC‘, $agent)){ ????????$os = ‘PowerPC‘; ????} ????else if (eregi(‘AIX‘, $agent)){ ?????????$os = ‘AIX‘; ????} ????else if (eregi(‘HPUX‘, $agent)){ ????????$os = ‘HPUX‘; ????} ????else if (eregi(‘NetBSD‘, $agent)){ ?????????$os = ‘NetBSD‘; ????} ????else if (eregi(‘BSD‘, $agent)){ ????????$os = ‘BSD‘; ????} ????else if (ereg(‘OSF1‘, $agent)){ ?????????$os = ‘OSF1‘; ????} ????else if (ereg(‘IRIX‘, $agent)){ ????????$os = ‘IRIX‘; ????} ????else if (eregi(‘FreeBSD‘, $agent)){ ?????????$os = ‘FreeBSD‘; ????} ????else if (eregi(‘teleport‘, $agent)){ ????????$os = ‘teleport‘; ????} ????else if (eregi(‘flashget‘, $agent)){ ?????????$os = ‘flashget‘; ????} ????else if (eregi(‘webzip‘, $agent)){ ????????$os = ‘webzip‘; ????} ????else if (eregi(‘offline‘, $agent)){ ?????????$os = ‘offline‘; ????} ????else { ????????$os = ‘Unknown‘; ????} ????return $os; ????}}?>php 获取 ip 地址 函数:
原文地址：http://www.cnblogs.com/chenduzizhong/p/7953930.html