Question

考虑以下HTML代码：

<strong>title</strong>
Hello World
<strong>Sub-Title</strong>
<div>This is just stuff</div>

如何清理字符串以返回没有标记的字符串，即“Hello World”。我认为这是使用DOM，并且如果有人有办法，并且不使用javascript或jquery，则更喜欢非正则表达式的答案。

[编辑]代码失败。

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Answer 1

我建议你用有点异国情调的标签来包围代码，这绝对不会出现在代码本身中，例如：

 $a="<body><strong>title</strong>\nHello World\n<strong>Sub-Title</strong>\n<div>This is just stuff</div></body>";

然后使用DOM：

$doc = new DOMDocument();
$doc->loadHTML($a);
$xpath = new DOMXPath($doc);
$textnodes = $xpath->evaluate('//body/text()[not(normalize-space() = '')]');

现在你可以得到你想要的任何东西：

foreach( $textnodes as $el ) {
  print_r($el);
}

/*
DOMText Object
(
    [wholeText] => 
Hello World

    [data] => 
Hello World

    [length] => 13
    [nodeName] => #text
    [nodeValue] => 
Hello World

    [nodeType] => 3
    [parentNode] => (object value omitted)
    [childNodes] => 
    [firstChild] => 
    [lastChild] => 
    [previousSibling] => (object value omitted)
    [nextSibling] => (object value omitted)
    [attributes] => 
    [ownerDocument] => (object value omitted)
    [namespaceURI] => 
    [prefix] => 
    [localName] => 
    [baseURI] => 
    [textContent] => 
Hello World
*/

如何使用PHP从html字符串中提取未标记的文本

1 个答案: