php生成按指定时间以来的，年、季度、月份的下拉列表

代码如下

复制代码

function countSeason($start,$end){     $temp = date("Y-m",strtotime("$start +3month"));     while ($temp <= $end){         $time[] = $temp;         $temp = date("Y-m",strtotime("$temp +3month"));     }     return $time; } $time = countSeason("2008-10",date("Y-m")); ?> <select name="select_season" id="select">     <option> 按季度查看 </option>     <?php foreach ($time as $val){?>     <option value="http://www./<?php echo $val;?>"><?php echo substr($val,0,4);?>年 第<?php     $temp = intval(substr($val,5,2));     if (0<$temp&&$temp<4)         {echo "1";}     elseif (3<$temp&&$temp<7)         {echo "2";}     elseif (6<$temp&&$temp<10)         {echo "3";}     else         {echo "4";}     ?>季度</option>     <?php }?> </select>

/*
直接循环
如果是月，则循环变量每次增加1（月）
如果是年，则每次增加12（月），
同时输出date('Y-m')或者 date('Y')

*/

php 文件在线压缩代码

class PHPZip
{
 function Zip($dir, $zipfilename)
 {
     if (@function_exists('gzcompress'))
  { 
   $curdir = getcwd();
   if (is_array($dir))
   {
     $filelist = $dir;
   }
   else
   {
    $filelist = $this -> GetFileList($dir);
   }
   
   if ((!empty($dir))&&(!is_array($dir))&&(file_exists

($dir))) chdir($dir);
   else chdir($curdir);

   if (count($filelist)>0)
   {
    foreach($filelist as $filename)
    {
     if (is_file($filename))
     {
      $fd = fopen ($filename,

"r");
      $content = @fread ($fd,

filesize ($filename));
      fclose ($fd);

      if (is_array($dir))

$filename = basename($filename);
      $this -> addFile($content,

$filename);
     }
    }
    $out = $this -> file();

    chdir($curdir);
    $fp = fopen($zipfilename, "w");
    fwrite($fp, $out, strlen($out));
    fclose($fp);
   }
   return 1;
  }
  else return 0;
 }

 function GetFileList($dir)
 {
  if (file_exists($dir))
  {
   $args = func_get_args();
   $pref = $args[1];
    
   $dh = opendir($dir);
   while($files = readdir($dh))
   {
    if (($files!=".")&&($files!=".."))
    {
     if (is_dir($dir.$files))
     {
      $curdir = getcwd();
      chdir($dir.$files);
      $file = array_merge($file,

$this -> GetFileList("", "$pref$files/"));
      chdir($curdir);
     }
     else $file[]=$pref.$files;
    }
   }
   closedir($dh);
  }
  return $file;
 }

    var $datasec      = array();
    var $ctrl_dir     = array();
    var $eof_ctrl_dir = "x50x4bx05x06x00x00x00x00";
    var $old_offset   = 0;

    /**
     * Converts an Unix timestamp to a four byte DOS date and time format

(date
     * in high two bytes, time in low two bytes allowing magnitude

comparison).
     *
     * @param  integer  the current Unix timestamp
     *
     * @return integer  the current date in a four byte DOS format
     *
     * @access private
     */
    function unix2DosTime($unixtime = 0) {
        $timearray = ($unixtime == 0) ? getdate() : getdate($unixtime);

        if ($timearray['year'] < 1980) {
         $timearray['year']    = 1980;
         $timearray['mon']     = 1;
         $timearray['mday']    = 1;
         $timearray['hours']   = 0;
         $timearray['minutes'] = 0;
         $timearray['seconds'] = 0;
        } // end if

        return (($timearray['year'] - 1980) << 25) | ($timearray['mon'] <<

21) | ($timearray['mday'] << 16) |
                ($timearray['hours'] << 11) | ($timearray['minutes'] << 5) |

($timearray['seconds'] >> 1);
    } // end of the 'unix2DosTime()' method

    /**
     * Adds "file" to archive
     *
     * @param  string   file contents
     * @param  string   name of the file in the archive (may contains the

path)
     * @param  integer  the current timestamp
     *
     * @access public
     */
    function addFile($data, $name, $time = 0)
    {
        $name     = str_replace('\', '/', $name);

        $dtime    = dechex($this->unix2DosTime($time));
        $hexdtime = 'x' . $dtime[6] . $dtime[7]
                  . 'x' . $dtime[4] . $dtime[5]
                  . 'x' . $dtime[2] . $dtime[3]
                  . 'x' . $dtime[0] . $dtime[1];
        eval('$hexdtime = "' . $hexdtime . '";');

        $fr   = "x50x4bx03x04";
        $fr   .= "x14x00";            // ver needed to extract
        $fr   .= "x00x00";            // gen purpose bit flag
        $fr   .= "x08x00";            // compression method
        $fr   .= $hexdtime;             // last mod time and date

        // "local file header" segment
        $unc_len = strlen($data);
        $crc     = crc32($data);
        $zdata   = gzcompress($data);
        $c_len   = strlen($zdata);
        $zdata   = substr(substr($zdata, 0, strlen($zdata) - 4), 2); // fix

crc bug
        $fr      .= pack('V', $crc);             // crc32
        $fr      .= pack('V', $c_len);           // compressed filesize
        $fr      .= pack('V', $unc_len);         // uncompressed filesize
        $fr      .= pack('v', strlen($name));    // length of filename
        $fr      .= pack('v', 0);                // extra field length
        $fr      .= $name;

        // "file data" segment
        $fr .= $zdata;

        // "data descriptor" segment (optional but necessary if archive is

not
        // served as file)
        $fr .= pack('V', $crc);                 // crc32
        $fr .= pack('V', $c_len);               // compressed filesize
        $fr .= pack('V', $unc_len);             // uncompressed filesize

        // add this entry to array
        $this -> datasec[] = $fr;
        $new_offset        = strlen(implode('', $this->datasec));

        // now add to central directory record
        $cdrec = "x50x4bx01x02";
        $cdrec .= "x00x00";                // version made by
        $cdrec .= "x14x00";                // version needed to extract
        $cdrec .= "x00x00";                // gen purpose bit flag
        $cdrec .= "x08x00";                // compression method
        $cdrec .= $hexdtime;                 // last mod time & date
        $cdrec .= pack('V', $crc);           // crc32
        $cdrec .= pack('V', $c_len);         // compressed filesize
        $cdrec .= pack('V', $unc_len);       // uncompressed filesize
        $cdrec .= pack('v', strlen($name) ); // length of filename
        $cdrec .= pack('v', 0 );             // extra field length
        $cdrec .= pack('v', 0 );             // file comment length
        $cdrec .= pack('v', 0 );             // disk number start
        $cdrec .= pack('v', 0 );             // internal file attributes
        $cdrec .= pack('V', 32 );            // external file attributes -

'archive' bit set

        $cdrec .= pack('V', $this -> old_offset ); // relative offset of

local header
        $this -> old_offset = $new_offset;

        $cdrec .= $name;

        // optional extra field, file comment goes here
        // save to central directory
        $this -> ctrl_dir[] = $cdrec;
    } // end of the 'addFile()' method

    /**
     * Dumps out file
     *
     * @return  string  the zipped file
     *
     * @access public
     */
    function file()
    {
        $data    = implode('', $this -> datasec);
        $ctrldir = implode('', $this -> ctrl_dir);

        return
            $data .
            $ctrldir .
            $this -> eof_ctrl_dir .
            pack('v', sizeof($this -> ctrl_dir)) .  // total # of entries

"on this disk"
            pack('v', sizeof($this -> ctrl_dir)) .  // total # of entries

overall
            pack('V', strlen($ctrldir)) .           // size of central dir
            pack('V', strlen($data)) .              // offset to start of

central dir
            "x00x00";                             // .zip file comment

length
    } // end of the 'file()' method

}

//保存图片到数据库

代码如下

复制代码

If($Picture != "none") {  $PSize = filesize($Picture);  $mysqlPicture = addslashes(fread(fopen($Picture, "r"), $PSize));  mysql_connect($host,$username,$password) or die("Unable to connect to SQL server"); @mysql_select_db($db) or die("Unable to select database");  mysql_query("INSERT INTO Images (Image) VALUES ($mysqlPicture)") or die("Cant Perform Query");  }else {  echo"You did not upload any picture";  }

 
//以img标签读取数据库中的图片

代码如下

复制代码

mysql_connect($host,$username,$password) or die("Unable to connect to SQL server"); @mysql_select_db($db) or die("Unable to select database"); $result=mysql_query("SELECT * FROM Images") or die("Cant Perform Query");  While($row=mysql_fetch_object($result)) { echo "<IMG SRC="Second.php3? PicNum=$row->PicNum">"; //如secoed.php文件代码如下 $result=mysql_query("SELECT * FROM Images WHERE PicNum=$PicNum") or die("Cant perform Query");  $row=mysql_fetch_object($result);  Header( "Content-type: image/gif"); echo $row->Image;

 

function selected ( $param , $value ) {
if ( $param == $value ) print "SELECTED" ;
}

# Collect any form data to control the display

$scale = 10 ;
$maptype = "G_NORMAL_MAP" ;
if ( $_REQUEST [ scale ]) $scale = $_REQUEST [ scale ];
if ( $_REQUEST [ maptype ]) $maptype = $_REQUEST [ maptype ];

# Geocoding your location
# Note - you would cache this in a file
# The key is domain specific - your google maps教程 key

/*
$location = file("http://maps.google.com/maps/geo?q=48+Spa+Road,+Melksham,+UK&
output=csv&key=ABQIAAAAvp3__HwvT3VkixIIbsW0axQuKI_6t1bH2P0vCI_Q8jfpn8qdNBQMnnelj
xh9czilkau_bYSCXteS_A");
*/
# Following line is hard coded for demo
$location [ 0 ]= "200,8,51.369318,-2.133457" ;
list ( $stat , $acc , $north , $east ) = explode ( "," , $location [ 0 ]);

?>

<html>
<head>
<title>Well House Manor, Melksham</title>
<script src="http://maps.google.com/maps?file=api&amp;v=2&amp;
key=ABQIAAAAvp3__HwvT3VkixIIbsW0axQuKI_6t1bH2P0vCI_Q8jfpn8qdNBQMnneljxh9czilkau_
bYSCXteS_A"
type="text/javascript教程"></script>
<script type="text/javascript">

//<![CDATA[

function load() {
if (GBrowserIsCompatible()) {
var map = new GMap2(document.getElementById("map"));
map.setCenter(new GLatLng(51.36905, -2.1335), <?= $scale ?> );
map.setMapType( <?= $maptype ?> );
var manor = new GLatLng( <?= $north ?> , <?= $east ?> );
map.addOverlay(new GMarker(manor));

}
}

//]]>
</script>
</head>
<body onLoad="load()" onUnload="GUnload()">
<table><tr valign=top><td>
<h1>Well House Manor, Melksham</h1>
<img src=http://filesimg.111cn.net/2010/03/20100525003348607.jpg><br>
&bull; Business Hotel in Melksham<br>
&bull; All rooms fitted to superior standard<br>
&bull; Internet Access throughout<br>
&bull; Plenty of parking and close to town centre<br><br>
<a href=http://www.wellhousemanor.co.uk>Well House
Manor website</a><hr>
<form method=POST> Change to
<select name=scale>
<option value=7 <?= selected ( $scale , 7 ) ?> >Overview</option>
<option value=10 <?= selected ( $scale , 10 ) ?> >County</option>
<option value=13 <?= selected ( $scale , 13 ) ?> >Town</option>
<option value=16 <?= selected ( $scale , 16 ) ?> >Street</option>
<option value=19 <?= selected ( $scale , 19 ) ?> >Building</option>
</select>
<select name=maptype>
<option value=G_NORMAL_MAP <?= selected ( $maptype , "G_NORMAL_MAP" ) ?> >
Normal map</option>
<option value=G_SATELLITE_MAP <?= selected ( $maptype , "G_SATELLITE_MAP" ) ?> >
Satellite data</option>
<option value=G_HYBRID_MAP <?= selected ( $maptype , "G_HYBRID_MAP" ) ?> >
Hybrid</option>
</select>
<input type=submit value="go!"></form><br>
This is a sample PHP page with Google Maps<br>
teach you how to write pages like this</a><br>
Date - <?= date ( "F, jS l Y" ) ?> <br>

</td><td>
<div id="map" style="width: 450px; height: 550px"</div>
</td></tr></table>
</body>
</html>

php+ajax文章自动保存代码实例方法主是要方便用户，提高用户体验哦，我们就是用ajax把数据保存一个临时数据，像csdn一样，他可以自动保存用户的数据，这样就是掉电哦，出现意外你编辑的数据都不人被丢失。

这是自动保存草稿的核心的一部分，
autosavetime(sec)　这个函数是用来开始计时的
clearTimeout(autosavetimer);清除定时器
document.getElementById('autosavetimebox').innerHTML=sec+"秒";　　取得页面中的autosavetimebox对像，并向其写入倒计时

if(sec>0) {
       autosavetimer = setTimeout("autosavetime("+sec+"-1)",1000);　　
     //这里就是如果当sec>0的时候，第一秒执行一次autosavetime这个函数，同时会把sec-1的值写入autosavetimebox中
}else {
          var title=document.getElementById('title');
          if(title.value!=''){
                                  autosave_post();
          }else{
                 document.getElementById('autosavetimebox').innerHTML='不用保存';  
          }
    这一部分，就是当sec>0的条件不成立，呵呵，就是sec<=0的时候，开始执行保存草稿
　首先会判断文章的标题是否为空，如果不会为空，就执行autosave_post()这个函数，否则就写入‘不用保存’
}
php教程代码

代码如下

复制代码

var userAgent = navigator.userAgent.toLowerCase(); var is_opera  = (userAgent.indexOf('opera') != -1); var is_saf    = ((userAgent.indexOf('applewebkit') != -1) || (navigator.vendor == 'Apple Computer, Inc.')); var is_webtv  = (userAgent.indexOf('webtv') != -1); var is_ie     = ((userAgent.indexOf('msie') != -1) && (!is_opera) && (!is_saf) && (!is_webtv)); var is_ie4    = ((is_ie) && (userAgent.indexOf('msie 4.') != -1)); var is_moz    = ((navigator.product == 'Gecko') && (!is_saf)); var is_kon    = (userAgent.indexOf('konqueror') != -1); var is_ns     = ((userAgent.indexOf('compatible') == -1) && (userAgent.indexOf('mozilla') != -1) && (!is_opera) && (!is_webtv) && (!is_saf)); var is_ns4    = ((is_ns) && (parseInt(navigator.appVersion) == 4)); var is_mac    = (userAgent.indexOf('mac') != -1); if ((is_ie & !is_ie4) || is_moz || is_saf || is_opera) {     var allowajax=1; }else{     var allowajax=0; } var xmlHttp = false; function makeSendData(postData,url,functionName,httptype) { var posturl=url; try {    xmlHttp = new ActiveXObject("Msxml2.XMLHTTP"); } catch (e) {    try {      xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");    } catch (e2) {      xmlHttp = false;    } } if (!xmlHttp && typeof XMLHttpRequest != 'undefined') {    xmlHttp = new XMLHttpRequest(); } if (!xmlHttp) {         alert('Cannot send an XMLHTTP request');         return false; } // 提交表单的方式 xmlHttp.open(httptype, posturl, true); // 当表单提交完成后触发一个事件 var changefunc="xmlHttp.onreadystatechange = "+functionName;  ///////from bob eval (changefunc); xmlHttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded'); xmlHttp.send(postData); } function autosave_post() {     var title=document.getElementById('title').value;     var content = window.frames["Editor"].window.frames["HtmlEditor"].document.getElementsByTagName("BODY")[0].innerHTML;     var postTime=document.getElementById('postTime').value;     if(allowajax==1)     {         content=postencode(content);         title=postencode(title);         var post="title="+title+"&content="+content+"&postTime="+postTime+"";         var url="ajax.php?act=autosave";         makeSendData(post,url,'autosave','POST');     } } function autosave() {     if(xmlHttp.readyState == 4)     {         if(xmlHttp.status == 200)         {             var autoresponse=xmlHttp.responseText;             var automessage=document.getElementById('autosavetimebox');             if(autoresponse.indexOf("<autosave_error>")!=-1)             {                 automessage.innerHTML='您还没有添写信息，不用保存草稿';                 return false;             }             if(autoresponse.indexOf("<autosave_ok>")!=-1)             {                 automessage.innerHTML='保存成功，您可以在发生意外的时候载入草稿';                 finddraft();             }         }     } } function finddraft() {     if(allowajax==1)     {         var url="ajax.php?act=loaddraft";         makeSendData(null,url,'loaddraft','POST');     } } function loaddraft() {     var draftbox=document.getElementById('draft');     if(xmlHttp.readyState < 4)     {         draftbox.innerHTML='草稿载入中...';     }     if(xmlHttp.readyState == 4)     {         if(xmlHttp.status == 200)         {             draftbox.innerHTML=xmlHttp.responseText;         }     } } function cleardraft() {     if(allowajax==1)     {         var url="ajax.php?act=cleardraft";         makeSendData(null,url,'nodraft','POST');     } } function nodraft() {     var draftbox=document.getElementById('draft');     if(xmlHttp.readyState < 4)     {         draftbox.innerHTML='载入中...';     }     if(xmlHttp.readyState == 4)     {         if(xmlHttp.status == 200)         {             draftbox.innerHTML=xmlHttp.responseText;         }     } } //encode string function postencode (str) {     str=encodeURIComponent(str);     if (is_moz) str=str.replace(/%0A/g, "%0D%0A"); //from bob     return str; }

自动保存的js代码

代码如下

复制代码

var autosavetimer; function autosavetime(sec) {    clearTimeout(autosavetimer);    document.getElementById('autosavetimebox').innerHTML=sec+"秒";    if(sec>0) {        autosavetimer = setTimeout("autosavetime("+sec+"-1)",1000);    }else {        var blogtitle=document.getElementById('title');        if(blogtitle.value!=''){            autosave_post();        }else{            document.getElementById('autosavetimebox').innerHTML='不用保存';          }    } } function startimer() {     var starttime=document.getElementById('autosavetimebox').innerHTML;     if(starttime=='保存成功，您可以在发生意外的时候载入草稿' || starttime=='您还没有添写信息，不用保存草稿')     {         starttime='60';     }else{         starttime=starttime.replace('秒','');     }     var autosavefunbox=document.getElementById('autosavefunbox');     autosavefunbox.innerHTML='<a href="javascript教程:" onClick="javascript:stoptimer()">停止计时</a>';     starttime==0 ? starttime=60 : starttime=starttime;     autosavetime(starttime); } function stoptimer() {     var autosavefunbox=document.getElementById('autosavefunbox');     autosavefunbox.innerHTML='<a href="javascript:" onClick="javascript:startimer()">开始计时</a>';     clearTimeout(autosavetimer); }