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dom.php
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51 lines (48 loc) · 2.04 KB
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<?php
$str = file_get_contents('20290282.html');
$dom = new DOMDocument();
$dom -> loadHTML($str);
$chap = $dom -> getElementsByTagName('h1') -> item(0); # HTML标签
$content = $dom -> getElementById('content'); # HTML标签中的id属性
$bottem2 = getElementsByClassName($dom, $ClassName = 'bottem2', $tagName = null); # 返回数组，$bottem2[0]为对象
$dom -> appendChild($chap); # appendChild() [追加]参数为对象
$dom -> appendChild($content);
$dom -> appendChild($bottem2[0]);
$html = $dom -> saveHTML();
$html_array = explode('</html>', $html);
$html = trim($html_array[1]);
echo $html . "\r\n<br><br><br>\r\n";
function getElementsByClassName($dom, $ClassName, $tagName = null){
if($tagName) $Elements = $dom -> getElementsByTagName($tagName);
else $Elements = $dom -> getElementsByTagName("*");
$Matched = array();
for($i = 0; $i < $Elements -> length; $i++){
if($Elements -> item($i) -> attributes -> getNamedItem('class')){
if($Elements -> item($i) -> attributes -> getNamedItem('class') -> nodeValue == $ClassName){
$Matched[] = $Elements -> item($i);
}
}
}
return $Matched;
}
function innerHTML($element){
$dom = newDOMDocument();
# 在新建的DOMDocument追加对象时会自动HTML-ENTITIES
$dom -> substituteEntities = false;
# importNode()导入到别的DOM档案，当前档案无需导入
$dom -> appendChild($dom -> importNode($element, TRUE));
$html = trim($dom -> saveHTML());
$tag = $element -> nodeName;
return $html;
// return preg_replace('@^<' . $tag . '[^>]*>|</' . $tag . '>$@', '', $html);
}
function htmlentities_decode($str){
$str = "<?W3S?h????>hello world! 世界你好！";
$str = mb_convert_encoding($str, 'HTML-ENTITIES', 'gb2312');
$str = mb_convert_encoding($str, "UTF-8", "HTML-ENTITIES");
echo htmlentities($str);
# 在网页头部加上如下三句可转换整个页面
mb_internal_encoding('你网站的编码');
mb_http_output('HTML-ENTITIES');
ob_start('mb_output_handler');
}