将所有html标记拆分为一个数组 [英] Split all html tags into a array
本文介绍了将所有html标记拆分为一个数组的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
让我们假设下面有这段代码:
Let's suppose that I have this code below:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Title of the document</title>
</head>
<body>
<div id="x">Hello</div>
<p>world</p>
<h1>my name</h1>
</body>
</html>
我需要提取所有html标签并将其放入数组中，如下所示:
And I need to extract all html tags and put inside a array, like this:
'0' => '<!DOCTYPE html>',
'1' => '<html>',
'2' => '<head>',
'3' => '<meta charset="UTF-8">',
'4' => '<title>Title of the document</title>',
'5' => '</head>',
'6' => '<body>',
'7' => '<div id="x">Hello</div>',
'8' => '<p>world</p>',
'9' => '<h1>my name</h1>',
....
对于我来说，我不需要将所有现有内容都包含在一个标签中，因为我只捕获每个标签的开头就已经非常好了.
in my case I have no need to get all the existing content within a tag , for me only catch the beginning of each tag was already very good.
我该怎么做?
推荐答案
通过 preg_match_all 函数使用以下解决方案:
Use the following solution with preg_match_all function:
$html_content = '<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Title of the document</title>
</head>
<body>
<div id="x">Hello</div>
<p>world</p>
<h1>my name</h1>
</body>
</html>';
preg_match_all("/\<\w[^<>]*?\>([^<>]+?\<\/\w+?\>)?|\<\/\w+?\>/i", $html_content, $matches);
// <!DOCTYPE html> is standardized document type definition and is not a tag
print_r($matches[0]);
输出:
Array
(
[0] => <html>
[1] => <head>
[2] => <meta charset="UTF-8">
[3] => <title>Title of the document</title>
[4] => </head>
[5] => <body>
[6] => <div id="x">Hello</div>
[7] => <p>world</p>
[8] => <h1>my name</h1>
[9] => </body>
[10] => </html>
)
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