PHP中的一些经验积累

代码片段
方法一：header("Location: index.php");
方法二：echo "<script>window.location ="$PHP_SELF";</script>";
方法三：echo "<META HTTP-EQUIV="Refresh" CONTENT="0; URL=index.php">";
2、获取访问者浏览器
代码片段
function browse_infor()
{
$browser="";$browserver="";
$Browsers =array("Lynx","MOSAIC","AOL","Opera","JAVA","MacWeb","WebExplorer","OmniWeb");
$Agent = $GLOBALS["HTTP_USER_AGENT"];
for ($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 = "Unknown";
}
return $browseinfo;
}
//调用方法$browser=browseinfo() ;直接返回结果
3、获取访问者操作系统

代码片段
function osinfo() {
$os="";
$Agent = $GLOBALS["HTTP_USER_AGENT"];
if (eregi("win",$Agent) && strpos($Agent, "95")) {
$os="Windows 95";
}
elseif (eregi("win 9x",$Agent) && strpos($Agent, "4.90")) {
$os="Windows ME";
}
elseif (eregi("win",$Agent) && ereg("98",$Agent)) {
$os="Windows 98";
}
elseif (eregi("win",$Agent) && eregi("nt 5.0",$Agent)) {
$os="Windows 2000";
}
elseif (eregi("win",$Agent) && eregi("nt",$Agent)) {
$os="Windows NT";
}
elseif (eregi("win",$Agent) && eregi("nt 5.1",$Agent)) {
$os="Windows XP";
}
elseif (eregi("win",$Agent) && ereg("32",$Agent)) {
$os="Windows 32";
}
elseif (eregi("linux",$Agent)) {
$os="Linux";
}
elseif (eregi("unix",$Agent)) {
$os="Unix";
}
elseif (eregi("sun",$Agent) && eregi("os",$Agent)) {
$os="SunOS";
}
elseif (eregi("ibm",$Agent) && eregi("os",$Agent)) {
$os="IBM OS/2";
}
elseif (eregi("Mac",$Agent) && eregi("PC",$Agent)) {
$os="Macintosh";
}
elseif (eregi("PowerPC",$Agent)) {
$os="PowerPC";
}
elseif (eregi("AIX",$Agent)) {
$os="AIX";
}
elseif (eregi("HPUX",$Agent)) {
$os="HPUX";
}
elseif (eregi("NetBSD",$Agent)) {
$os="NetBSD";
}
elseif (eregi("BSD",$Agent)) {
$os="BSD";
}
elseif (ereg("OSF1",$Agent)) {
$os="OSF1";
}
elseif (ereg("IRIX",$Agent)) {
$os="IRIX";
}
elseif (eregi("FreeBSD",$Agent)) {
$os="FreeBSD";
}
if ($os=="") $os = "Unknown";
return $os;
}
//调用方法$os=os_infor() ;

源代码网供稿.