1、关于php重定向
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\”>”;
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、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\t”; echo “test2\t\n”; echo “test1\t”; echo “test2\t\n”; echo “test1\t”; echo “test2\t\n”; echo “test1\t”; echo “test2\t\n”; echo “test1\t”; echo “test2\t\n”; echo “test1\t”; echo “test2\t\n”; ?> //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>”:””;
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