Méthode PHP régulière pour obtenir le top 500 du classement musical Baidu

取百度音乐排行榜top500 
<title>百度音乐top500</title>
<style>
body{
font-size:12px;
font-family:Verdana, Arial, Helvetica, sans-serif;
}
ul{
clear:both;
padding:0;
margin:0;
list-style:none;
}
#inner{
width:960px;
margin-left:auto;
margin-right:auto;
text-align:center;
}
#tableFrame{
width:960px; /*需要修改*/
border-top:#000 1px solid;
border-left:#000 1px solid;
font-size:12px;
}
#tableFrame:after {
content: "."; 
display: block;
height: 0; 
clear: both; 
visibility: hidden;
}
li{
float:left;
display: block;
width:190px; /*需要修改*/
height:41;
padding:2px;
margin:0;
border-right:#000 1px solid;
border-bottom:#000 1px solid;
line-height:16px;
color:000;
overflow:scroll;
}
/* 表格标题*/
#tableFrameTitle ul{}
#tableFrameTitle ul li{
background:gray; 
text-align:center;
color:#fff;
}
/* 表格内容*/
#tableCase ul{}
#tableCase ul li{}
/* 单个表格特定样式*/
.tableCaseThree{color:#329A02;}
.tableCaseFive{color:#f00;}
.tableCaseSeven{color:#f00;}
</style>
<p id=inner>
<p id="tableFrame">
    <p id="tableFrameTitle">
        <ul>
            <li>排名</li>
            <li>歌名</li>
            <li>排名变化趋势</li>
            <li>红雨</li>
            <li>RedRain</li>
        </ul>
    </p>
    <p id="tableCase">
<ul>
<?php
$contents=file_get_contents("http://music.baidu.com/top/dayhot");
$pattern="{<[^>]+song-title[^>]+><a href=\"(.*)\" title=\"(.*)\">}U";
preg_match_all($pattern,$contents,$out,PREG_PATTERN_ORDER);
$pattern1="{[1-9][0-9]{0,2}.*<i class=\"(.*)\"></i>}U";
preg_match_all($pattern1,$contents,$out1,PREG_PATTERN_ORDER);
$c=0;
for($i=0;$i<500;$i++){
if($c==5){
$c=1;
?>
</ul><ul>
<?php
}else{
$c++;
}
$get=$out[1][$i];
$get1=$out[2][$i];
$get2=$out1[1][$i];
echo "<li>".iconv("utf-8","gb2312",($i+1).".<a href=&#39;http://music.baidu.com$get&#39; target=&#39;_blank&#39;>".$get1."</a><img src=&#39;../$get2.jpg&#39;>")."</li>";
}
?>
</ul>
</p>
</p>
</p>