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PHP實(shí)現(xiàn)網(wǎng)上點(diǎn)歌（二）

 更新時(shí)間：2006年10月09日 00:00:00   作者：  
midif2.php
<?
$d=dir("./dir");     //得到dir目錄對(duì)象
$i="0";
while($entry=$d->read()){
$i=$i+1;
if($i>2){           //大于2的目的是去掉當(dāng)前目錄的".",和表示前一個(gè)目錄的".."
    $wq[]=$entry;  //把目錄明細(xì)放入$wq數(shù)組中
    }
}
$d->close();         //關(guān)閉
?>
<html>
<head>
<title>List</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<script LANGUAGE="javascript">
<!--
var onecount;
onecount=0;
subcat = new Array();
<?
$onecount="0";
for($j=0;$j<count($wq);$j++){
   $dir="./dir/".$wq[$j];              
   $d=dir($dir);                      //得到每一個(gè)dir目錄下的每一個(gè)目錄對(duì)象
   $i="0";
   while($entry=$d->read()){
        $i=$i+1;
     if($i>2){
?>
subcat[<?echo $onecount;?>] = new Array("<?echo $entry;?>","<?echo $wq[$j];?>","<?echo $entry;?>");
<?
    $onecount=$onecount+1;
         }
   }
$d->close();
}
?>
onecount=<?echo $onecount;?>;

function changelocation(locationid)
    {
    document.myform.song.length = 0;  
    var locationid=locationid;
    var i;
    for (i=0;i < onecount; i++)
        {
            if (subcat[i][1] == locationid)
            {  
            document.myform.song.options[document.myform.song.length] = new Option(subcat[i][0],subcat[i][2]);
            }         
        }

    }     
//-->
</script>
</head>
<body>
<form method="post" action="midif1.php" name="myform" target="f1">
    <select name="zj" onChange="changelocation(document.myform.zj.options[document.myform.zj.selectedIndex].value)">   
<?for($i=0;$i<count($wq);$i++){?>
        <option value="<?echo $wq[$i];?>"><?echo $wq[$i];?></option>
<?}?>
</select>
    <select name="song">  
        <option selected value=""></option>
    </select>
<input type="submit" name="play" value="播放">
<input type="button" name="stop" value="停止" onclick="javascript:parent.f1.location.href='midif1.php'">
<br>
<br>
播放次數(shù)：
<select name="looptime">
<option value="1" selected>只聽(tīng)一遍</option>
<option value="infinite">百聽(tīng)不厭</option>
</select>
<a href="javascript:history.go(0)">刷新曲目</a>
</form>
<script LANGUAGE="javascript">  
<!--  
changelocation(document.myform.zj.options[document.myform.zj.selectedIndex].value);  
//-->  
</script>
</body>
</html>  

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