header("Content-type: text/html; charset=utf-8"); //申明编码,以免页面乱码
//去掉内容中所有空格:
$qian=array(" "," ","\t","\n","\r");
$hou=array("","","","","");
$data['name']=str_replace($qian,$hou,$str);
gethostbyname($_ENV['COMPUTERNAME'])//获取本机IP:
//全部转为大写字母
strtoupper()
$_SERVER['HTTP_REFERER'];//获取上一页的URL地址
获得用户IP
function getIpAddress()
{ // 取得当前用户的IP地址
if (getenv('HTTP_CLIENT_IP'))
{ $ip = getenv('HTTP_CLIENT_IP'); }
elseif (getenv('HTTP_X_FORWARDED_FOR'))
{ $ip = getenv('HTTP_X_FORWARDED_FOR'); }
elseif (getenv('REMOTE_ADDR'))
{ $ip = getenv('REMOTE_ADDR'); } else
{ $ip = $_SERVER['REMOE_ADDR']; }
return $ip;}
//过滤数组中为空的值
array_filter()
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