<?php
function fetch_urlpage_contents($url){
$c=file_get_contents($url);
return $c;
}
//獲取匹配內(nèi)容
function fetch_match_contents($begin,$end,$c)
{
$begin=change_match_string($begin);
$end=change_match_string($end);
$p = "{$begin}(.*){$end}";
if(eregi($p,$c,$rs))
{
return $rs[1];}
else { return "";}
}//轉(zhuǎn)義正則表達式字符串
function change_match_string($str){
//注意，以下只是簡單轉(zhuǎn)義
//$old=array("/","$");
//$new=array("\/","\$");
$str=str_replace($old,$new,$str);
return $str;
}
//采集網(wǎng)頁
function pick($url,$ft,$th)
{
$c=fetch_urlpage_contents($url);
foreach($ft as $key => $value)
{
$rs[$key]=fetch_match_contents($value["begin"],$value["end"],$c);
if(is_array($th[$key]))
{ foreach($th[$key] as $old => $new)
{
$rs[$key]=str_replace($old,$new,$rs[$key]);
}
}
}
return $rs;
}
$url="http://"; //要采集的地址
$ft["title"]["begin"]="<title>"; //截取的開始點
$ft["title"]["end"]="</title>"; //截取的結(jié)束點
$th["title"]["中山"]="廣東"; //截取部分的替換
$ft["body"]["begin"]="<body>"; //截取的開始點
$ft["body"]["end"]="</body>"; //截取的結(jié)束點
$th["body"]["中山"]="廣東"; //截取部分的替換
$rs=pick($url,$ft,$th); //開始采集
echo $rs["title"];
echo $rs["body"]; //輸出
?>
