php同时提取多条新闻中的文本一例
本文为一个提取一批新闻网页中的文本的小程序,它可以将各篇新闻的内容存为以该新闻标题为文件名的文本文件。如有更好的处理方法,请和我联系:
lwx3069@sina.com
这里以人民网中的“今日要闻”下的新闻为例.
($url) ? "" : $url = "http://www.unn.com.cn/GB/channel2/3/11/index.html"; // 今日要闻
if(isset($url)&&$url!="") {
$str = implode("",file($url));
$str_ary = explode("
- ",$str);
- ",trim($str_ary[1]));
for ($i=0; $iif (strlen(trim($str_ary[$i]))continue;
}
echo "新闻".$i.":".$str_ary[$i];
$str1=strstr("$str_ary[$i]",$str2=strstr("$str_ary[$i]"," target);
$len1=strlen("$str1");
$len2=strlen("$str2");
$len=$len1-$len2;
$url=substr("$str1",10,$len-10);
if (strlen(trim($url))!=0) {
$url = "http://www.unn.com.cn/".$url;
define(CONTENTS_DIR,"./contents/");
if(isset($url)&&$url!="") {
$str = implode("",file($url));
$str1=explode(,$str); //去掉文件没用的上半部分
$str2 = explode(
//取出文件的下半部分,并去掉没用的下半部分,这时得到的都是有用的
$str3=explode(,$str2[0]); //从整个有用部分取出文件标题和正文
$str4=explode(,$str2[0]); //取出日期和时间
$str5=explode(,$str3[1]); //从标题和正文部分取出标题
$title=str_replace("
","",$str5[0]);
$str3=explode(
,$str2[0]); //从整个有用部分取出文件正文
$str3[1]=str_replace(
," "." ",$str3[1]);
$str3[1]=str_replace( ,"",$str3[1]);
$str3=strip_tags($str3[1]);
$pf=trim($title).".txt";
$ppf=fopen(CONTENTS_DIR."$pf",w);
fputs($ppf,$title);
fputs($ppf,"$str4[0]");
fputs($ppf,$str3);
}
}
}
}
?>
$str_ary = explode("

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