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php获取客户端ip

2014年1月18日 mood 发表评论阅读评论

&lt;?php
 $onlineip = "";
 $cip = getenv('HTTP_CLIENT_IP');
 $xip = getenv('HTTP_X_FORWARDED_FOR');
 $rip = getenv('REMOTE_ADDR');
 $srip = isset($_SERVER['REMOTE_ADDR']) ? $_SERVER['REMOTE_ADDR'] : 'unknown';
 if($cip &amp;&amp; strcasecmp($cip, 'unknown')) {
     $onlineip = $cip;
 } elseif($xip &amp;&amp; strcasecmp($xip, 'unknown')) {
     $onlineip = $xip;
 } elseif($rip &amp;&amp; strcasecmp($rip, 'unknown')) {
     $onlineip = $rip;
 } elseif($srip &amp;&amp; strcasecmp($srip, 'unknown')) {
     $onlineip = $srip;
 }
 
 if(preg_match("/[d.]{7,15}/", $onlineip, $match)) {
     $onlineip = $match[0];
 } else {
     $onlineip = 'unknown';
 } echo $onlineip;
?&gt;

<?php

$onlineip = "";

$cip = getenv('HTTP_CLIENT_IP');

$xip = getenv('HTTP_X_FORWARDED_FOR');

$rip = getenv('REMOTE_ADDR');

$srip = isset($_SERVER['REMOTE_ADDR']) ? $_SERVER['REMOTE_ADDR'] : 'unknown';

if($cip && strcasecmp($cip, 'unknown')) {

$onlineip = $cip;

} elseif($xip && strcasecmp($xip, 'unknown')) {

$onlineip = $xip;

} elseif($rip && strcasecmp($rip, 'unknown')) {

$onlineip = $rip;

} elseif($srip && strcasecmp($srip, 'unknown')) {

$onlineip = $srip;

}

if(preg_match("/[d.]{7,15}/", $onlineip, $match)) {

$onlineip = $match[0];

} else {

$onlineip = 'unknown';

} echo $onlineip;

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