PHP 中的一些经验积累
2007-06-21 19:13
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| 来源：http://computer.mblogger.cn/whytt/posts/60766.aspx 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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