* 获取客户端ip* @return [string] [description]*/function getclientip() {$ip = null;if (isset($_server['http_x_forwarded_for'])) {$arr = explode(',', $_server['http_x_forwarded_for']);$pos = array_search('unknown',$arr);if(false !== $pos) unset($arr[$pos]);$ip = trim($arr[0]);}elseif (isset($_server['http_client_ip'])) {$ip = $_server['http_client_ip'];}elseif (isset($_server['remote_addr'])) {$ip = $_server['remote_addr'];}// ip地址合法验证$ip = (false !== ip2long($ip)) ? $ip : '0.0.0.0';return $ip;}/**
* 获取在线ip* @return string*/function getonlineip($format=0) {global $s_global;if(empty($s_global['onlineip'])) {if(getenv('http_client_ip') && strcasecmp(getenv('http_client_ip'), 'unknown')) {$onlineip = getenv('http_client_ip');} elseif(getenv('http_x_forwarded_for') && strcasecmp(getenv('http_x_forwarded_for'), 'unknown')) {$onlineip = getenv('http_x_forwarded_for');} elseif(getenv('remote_addr') && strcasecmp(getenv('remote_addr'), 'unknown')) {$onlineip = getenv('remote_addr');} elseif(isset($_server['remote_addr']) && $_server['remote_addr'] && strcasecmp($_server['remote_addr'], 'unknown')) {$onlineip = $_server['remote_addr'];}preg_match(/[\d\.]{7,15}/, $onlineip, $onlineipmatches);$s_global['onlineip'] = $onlineipmatches[0] ? $onlineipmatches[0] : 'unknown';}if($format) {
$ips = explode('.', $s_global['onlineip']);for($i=0;$i$ips[$i] = intval($ips[$i]);}return sprintf('%03d%03d%03d', $ips[0], $ips[1], $ips[2]);} else {return $s_global['onlineip'];}}
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