PHP中检测proxy

haidong

<br>                   能够检测大部分通过代理服务器访问的ip.  <BR><BR><TABLE cellSpacing=0 cellPadding=0 width="85%"><TBODY><TR><TD style="BORDER-RIGHT: rgb(0,0,0) 1px groove; BORDER-TOP: rgb(0,0,0) 1px groove; BORDER-LEFT: rgb(0,0,0) 1px groove; BORDER-BOTTOM: rgb(0,0,0) 1px groove" bgColor=#eeeeee>&lt;?php  <BR>//beiji.com 2000.6.17  <BR>$ip = getenv("REMOTE_ADDR");  <BR>$v = getenv("HTTP_VIA");  <BR>$f = getenv("HTTP_X_FORWARDED_FOR");  <BR>$c = getenv("HTTP_XROXY_CONNECTION");  <BR>$o = getenv("HTTP_PRAGMA");  <BR><BR>print '&lt;br&gt;REMOTE_ADDR';  <BR>print $ip;  <BR><BR>if (($v=="")&amp;&amp;($f=="")&amp;&amp;($c=="")&amp;&amp;($o=="")){  <BR>print "&lt;br&gt;not through proxy";  <BR>}  <BR>else {  <BR>print "&lt;br&gt;through proxy";  <BR>print '&lt;br&gt;http_via: ';print $v;  <BR>print '&lt;br&gt;http_x_forwarded_for: ';print $f;  <BR>print '&lt;br&gt;http_xroxy_connection: ';print $c;  <BR>print '&lt;br&gt;http_pragma: ';print $o;  <BR>}  <BR>?&gt;  </TD></TR></TBODY></TABLE><br><br>