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最近刚刚完成手中的项目，比较闲。来这儿转转，把积累的一些技巧分享给大家！
1、关于PHP重定向
方法一：header("Location: index.php");
方法二：echo "<script>window.location =\"$PHP_SELF\";</script>";
方法三：echo "";
2、获取访问者浏览器
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
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() ;
4、檔案格式類別
$mime_types = array(
'gif' => 'image/gif',
'jpg' => 'image/jpeg ',
'jpeg' => '圖片/jpeg',
'jpe' => '圖片/jpeg',
'bmp' => '圖片/bmp',
'png' => '圖片/png',
'tif' => '圖片/tiff',
'tiff' => '圖片/tiff',
'pict' => ; '圖片/x-pict' ,
'pic' => '圖片/x-pict',
'pct' => '圖片/x-pict',
'tif' = > '圖片/tiff',
'tiff' => '圖片/tiff',
'psd' => '圖片/x-photoshop',
'swf' = > 'application/x-shockwave-flash',
'js' => 'application/x-javascript',
'pdf' => 'application/pdf',
'ps' => '應用程式/postscript',
'eps' = > '應用程式/postscript',
'ai' => '應用程式/postscript',
'wmf' => '應用程式/x-msmetafile',
'css' = > '文字/css',
'htm' => '文字/html',
'html' => '文字/html',
'txt' => '文字/純文字',
'xml' => '文字/xml',
'wml' => '文字/wml',
'wbmp' => 'image/vnd.wap.wbmp',
'mid' => '音頻/midi',
'wav' => '音頻/wav',
'mp3' => '音頻/mpeg',
'mp2' => '音訊/mpeg',
'avi' =>; 'video/x-msvideo',
'mpeg' =>; '視訊/mpeg',
'mpg' =>; '影片/mpeg',
'qt' =>; '影片/quicktime',
'mov' =>; '影片/quicktime',
'lha' =>; 'application/ x-lha',
'lzh' =>; 'application/x-lha',
'z' =>; 'application/x-compress',
'gtar' =>; 'application /x-gtar',
'gz' =>; 'application/x-gzip',
'gzip' =>; 'application/x-gzip',
'tgz' =>; ' application/x-gzip',
'tar' =>; 'application/x-tar',
'bz2' =>; 'application/bzip2',
'zip' =>; 'application /zip',
'arj' =>; 'application/x-arj',
'rar' =>; 'application/x-rar-compressed',
'hqx' = >; 'application/mac-binhex40',
'sit' =>; 'application/x-stuffit',
'bin' =>; 'application/x-macbinary',
'uu' =>; 'text/x-uuencode',
'uue' =>; 'text/x-uuencode',
'latex'=>; 'application/x-latex' ,
'ltx' =>; 'application/x-latex',
'tcl' =>; 'application/x-tcl',
'pgp' =>; 'application/ pgp',
'asc' =>; 'application/pgp',
'exe' =>; 'application/x-msdownload',
'doc' =>; 'application/msword',
'rtf' =>; 'application/rtf',
'xls' =>; 'application/vnd.ms-excel',
'ppt' =>; 'application/vnd.ms- powerpoint',
'mdb' =>; 'application/x-msaccess',
'wri' =>; 'application/x-mswrite',
);
5、 php產生excel文件
header("內容類型：application/vnd.ms-excel");
header("Content-Disposition:filename=test.xls");
回顯「test1t」；
回顯「test2tn」；
回顯「test1t」;
回顯「test2tn」;
回顯「test1t」；
回顯「 test2tn」；
回顯「test1t」；
回顯「test2tn」；
回顯「test1t」;
回顯「test2tn」；
回顯「test1t」；
回顯“test2tn”；
？ >
//因果對應文件頭就可以輸出.doc .xls等文件格式了
6、時間比較問題
舉一個簡單的例子說明：比如一個論壇當天發表的貼子用
方法一：
//$db->rows[$i][date]中為資料庫中datetime欄位值。
$今天=時間();
$theDay=date("Y-m-d H:i:s",$today-24*3600);
$newTag=$db->rows[$i] [date]>=$theDay?" ":";
方法二：
$newTag=$db->rows[$i][ date]>=date("Y-m-d 00:00:00")?" ":";
7、PHP中對資料庫操作的封裝
我的例子.........見論文附件！
 相關附件：PHP中資料庫操作的封裝範例
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