// Find all element has attribute id
$ret = $html->find('*[id]');
这是查找具有属性id的所有元素的示例。有没有办法找到所有元素。我尝试这种方式,但它不起作用:
// Find all element
$ret = $html->find('*');
我想获取$ html中的所有元素,将获取所有parent和childs元素。例如:
<div>
<span>
<div>World!</div>
<div>
<span>Hello!</span>
<span>
<div>Hello World!</div>
</span>
</div>
</span>
</div>
现在我想要将所有<span>
的明文放在里面,并保留我们拥有的所有<div>
!预期结果:
<div>
<div>World!</div>
<div>
<div>Hello World!</div>
</div>
</div>
答案 0 :(得分:1)
您的示例似乎工作正常,请尝试以下操作,这将输出每个元素的innertext。
foreach($html->find('*') as $test)
echo $test->innertext;
例如:
$html = str_get_html('<div id="hello">Hello</div><div id="world">World</div>');
输出
HelloWorld
答案 1 :(得分:0)
/**
* Refine the input HTML (string) and keep what was specified
*
* @param $string : Input HTML
* @param array $allowed : What will be kept?
* @return bool|simple_html_dom
*/
function crl_parse_html($string, $allowed = array())
{
// String --> DOM Elements
$string = str_get_html($string);
// Fetch child of the current element (one by one)
foreach ($string->find('*') as $child) {
if (
// Current inner-text contain one or more elements
preg_match('/<[^<]+?>/is', $child->innertext) and
// Current element tag is in maintained elements array
in_array($child->tag, $allowed)
) {
// Assign current inner-text to current filtered inner-text
$child->innertext = crl_parse_html($child->innertext, $allowed);
} else if (
// Current inner-text contain one or more elements
preg_match('/<[^<]+?>/is', $child->innertext) and
// Current element tag is NOT in maintained elements array
!in_array($child->tag, $allowed)
) {
// Assign current inner-text to the set of inner-elements (if exists)
$child->innertext = preg_replace('/(?<=^|>)[^><]+?(?=<|$)(<[^\/]+?>.+)/is', '$1', $child->innertext);
// Assign current outer-text to current filtered inner-text
$child->outertext = crl_parse_html($child->innertext, $allowed);
} else if (
(
// Current inner-text is only plaintext
preg_match('/(?<=^|>)[^><]+?(?=<|$)/is', $child->innertext) and
// Current element tag is NOT in maintained elements array
!in_array($child->tag, $allowed)
) or
// Current plain-text is empty
trim($child->plaintext) == ''
) {
// Assign current outer-text to empty string
$child->outertext = '';
}
}
return $string;
}
这是我的解决方案,我做到了,如果有人需要它,我只是在这里发帖并结束这个问题 请注意: 此函数使用递归。因此,太大的数据将是一个大问题。决定使用此功能时要仔细重新考虑。
答案 2 :(得分:0)
GLOBAL $elements;
$elements=array();
findElements($fullHTML);
function findElements($html){
global $elements;
$art_html = new simple_html_dom();
$art_html->load($html);
foreach ($art_html->find("*") as $element) {
$elements[]=$element;
findElements($element->innertext);
}
}
我写这个函数来找到所有元素