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经验积累,献给PHP爱好者

本帖由 laogui2005-12-09 发布。版面名称:后端开发

  1. laogui

    laogui Administrator
    管理成员

    注册:
    2005-08-30
    帖子:
    15,216
    赞:
    35
    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
    PHP:
    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
    PHP:
    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
    PHP:
    $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
    PHP:
    <? 
    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:
    PHP:
    //$db->rows[$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:
    PHP:
    $newTag=$db->rows[$i][date]>=date("Y-m-d 00:00:00")?"<img src='../image/newinfor.gif'>":"";
     
    #1 laogui, 2005-12-09
    最后编辑: 2005-12-09
  2. Picky

    Picky New Member

    注册:
    2005-09-04
    帖子:
    538
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    早就应该把你的经验发出来拉,你老了..
    不要带进棺材啊..
     
  3. 老林

    老林 New Member

    注册:
    2005-09-06
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    36
  4. fyfei

    fyfei New Member

    注册:
    2005-10-07
    帖子:
    9,067
    赞:
    46
    老鬼很小气
     
  5. 找不到符号

    找不到符号 New Member

    注册:
    2005-10-29
    帖子:
    308
    赞:
    9
    大言不惭的说:难得老鬼写点东西,支持一下........
     
  6. Kevin

    Kevin New Member

    注册:
    2005-10-23
    帖子:
    12,728
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    55
    嘿嘿!
     
  7. fyfei

    fyfei New Member

    注册:
    2005-10-07
    帖子:
    9,067
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    46
    再支持一下