提取HTML标签_PHP教程

/*********************************
*
* 作者: 徐祖宁 (唠叨)
* 邮箱: czjsz_ah@stats.gov.cn
* 开发: 2002.07
*
*
* 函数: tags
* 功能: 从文件中提取HTML标签
*
* 入口:
* $filename 文件名
* $tag 标签名
* 返回:
* 数组,每项为:
* tagName String
* Text String
* Attrs Array
*
* 示例:
* print_r(tags("test1.htm","a"));
* print_r("http://localhost/index.htm","img");
*
*/

function tags($filename,$tag) {
$buffer = join("",file($filename));
$buffer = eregi_replace("\r\n","",$buffer);
$tagkey = sql_regcase($tag);
$buffer = eregi_replace("<$tagkey ","\n<$tag ",$buffer);
$ar = split("\n",$buffer);

foreach($ar as $v) {
if(! eregi("<$tagkey ",$v)) continue;
eregi("<$tagkey ([^>]*)((.*) $p[tagName] = strtoupper($tag);
if($regs[3])
$p[Text] = $regs[3];
$s = trim(eregi_replace("[ \t]+"," ",$regs[1]))." ";
$s = eregi_replace(" *= *","=",$s);

$a = split(" ",$s);
for($i=0;$i $ch = array();
if(eregi("=[\"']",$a[$i])) {
$j = $i+1;
while(!eregi("[\"']$",$a[$i])) {
$a[$i] .= " ".$a[$j];
unset($a[$j]);
}
}
}
foreach($a as $k) {
$name = strtoupper(strtok($k,"="));
$value = strtok("\0");
if(eregi("^[\"']",$value))
$value = substr($value,1,-1);
if($name)
$p[Attrs][$name] = $value;
}
$pp[] = $p;
}
return $pp;
}

?>

http://www.bkjia.com/PHPjc/315020.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/315020.htmlTechArticle?php /********************************* * *作者: 徐祖宁 (唠叨) *邮箱: czjsz_ah@stats.gov.cn *开发: 2002.07 * * *函数: tags *功能: 从文件中提取HTML标签 * *入口...