PHP 中的一些经验积累

作者:snowai

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 “<META HTTP-EQUIV=”Refresh” CONTENT=”0;
URL=index.php”>”;

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
“scriptwindow.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

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

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)) {

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、文件格式类

$mime_types = array( gif = image/gif, jpg = image/jpeg, jpeg =
image/jpeg, jpe = image/jpeg, bmp = image/bmp, png = image/png, tif =
image/tiff, tiff = image/tiff, pict = image/x-pict, pic = image/x-pict,
pct = image/x-pict, tif = image/tiff, tiff = image/tiff, psd =
image/x-photoshop, swf = application/x-shockwave-flash, js =
application/x-javascript, pdf = application/pdf, ps =
application/postscript, eps = application/postscript, ai =
application/postscript, wmf = application/x-msmetafile, css = text/css,
htm = text/html, html = text/html, txt = text/plain, xml = text/xml, wml
= text/wml, wbmp = image/vnd.wap.wbmp, mid = audio/midi, wav =
audio/wav, mp3 = audio/mpeg, mp2 = audio/mpeg, avi = video/x-msvideo,
mpeg = video/mpeg, mpg = video/mpeg, qt = video/quicktime, mov =
video/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生成excel文档

? header(“Content-type:application/vnd.ms-excel”);
header(“Content-Disposition:filename=test.xls”); echo “test1”; echo
“test2”; echo “test1”; echo “test2”; echo “test1”; echo “test2”; echo
“test1”; echo “test2”; echo “test1”; echo “test2”; echo “test1”; echo
“test2”; ? //改动相应文件头就可以输出.doc .xls等文件格式了

6、时间比较问题
举一个简单例子说明:比如一个论坛对当天发表的贴子用new图片标记一下。
方法一: //$db-rows[$i][date]中为数据库中datetime字段值.
$today=time(); $theDay=date(“Y-m-d H:i:s”,$today-24*3600);
$newTag=$db-rows[$i][date]=$theDay?”img
src=../image/newinfor.gif”:””; 方法二:
$newTag=$db-rows[$i][date]=date(“Y-m-d 00:00:00″)?”img
src=../image/newinfor.gif”:””; 7、PHP中对数据库操作的封装
我的例子………见本文附件!

相关附件:PHP中对数据库操作的封装的例子

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