bupt1987 / Html Parser
Licence: mit
php html parser，类似与PHP Simple HTML DOM Parser，但是比它快好几倍
Stars: ✭ 510
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HtmlParser
php html解析工具，类似与PHP Simple HTML DOM Parser。 由于基于php模块dom，所以在解析html时的效率比 PHP Simple HTML DOM Parser 快好几倍。
注意：html代码必须是utf-8编码字符，如果不是请转成utf-8
如果有乱码的问题参考：http://www.fwolf.com/blog/post/314
现在支持composer
"require": {"bupt1987/html-parser": "dev-master"}
加载composer
require 'vendor/autoload.php';
================================================================================
Example
<?php
require 'vendor/autoload.php';
$html = '<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>test</title>
</head>
<body>
<p class="test_class test_class1">p1</p>
<p class="test_class test_class2">p2</p>
<p class="test_class test_class3">p3</p>
<div id="test1">测试1</div>
</body>
</html>';
$html_dom = new \HtmlParser\ParserDom($html);
$p_array = $html_dom->find('p.test_class');
$p1 = $html_dom->find('p.test_class1',0);
$div = $html_dom->find('div#test1',0);
foreach ($p_array as $p){
echo $p->getPlainText() . "\n";
}
echo $div->getPlainText() . "\n";
echo $p1->getPlainText() . "\n";
echo $p1->getAttr('class') . "\n";
echo "show html:\n";
echo $div->innerHtml() . "\n";
echo $div->outerHtml() . "\n";
?>
基础用法
// 查找所有a标签
$ret = $html->find('a');
// 查找a标签的第一个元素
$ret = $html->find('a', 0);
// 查找a标签的倒数第一个元素
$ret = $html->find('a', -1);
// 查找所有含有id属性的div标签
$ret = $html->find('div[id]');
// 查找所有含有id属性为foo的div标签
$ret = $html->find('div[id=foo]');
高级用法
// 查找所有id=foo的元素
$ret = $html->find('#foo');
// 查找所有class=foo的元素
$ret = $html->find('.foo');
// 查找所有拥有 id属性的元素
$ret = $html->find('*[id]');
// 查找所有 anchors 和 images标记
$ret = $html->find('a, img');
// 查找所有有"title"属性的anchors and images
$ret = $html->find('a[title], img[title]');
层级选择器
// Find all <li> in <ul>
$es = $html->find('ul li');
// Find Nested <div> tags
$es = $html->find('div div div');
// Find all <td> in <table> which class=hello
$es = $html->find('table.hello td');
// Find all td tags with attribite align=center in table tags
$es = $html->find('table td[align=center]');
嵌套选择器
// Find all <li> in <ul>
foreach($html->find('ul') as $ul)
{
foreach($ul->find('li') as $li)
{
// do something...
}
}
// Find first <li> in first <ul>
$e = $html->find('ul', 0)->find('li', 0);
属性过滤
支持属性选择器操作:
过滤 描述
[attribute] 匹配具有指定属性的元素.
[!attribute] 匹配不具有指定属性的元素。
[attribute=value] 匹配具有指定属性值的元素
[attribute!=value] 匹配不具有指定属性值的元素
[attribute^=value] 匹配具有指定属性值开始的元素
[attribute$=value] 匹配具有指定属性值结束的元素
[attribute*=value] 匹配具有指定属性的元素,且该属性包含了一定的值
Dom扩展用法
获取dom通过扩展实现更多的功能，详见：http://php.net/manual/zh/book.dom.php
/**
* @var \DOMNode
*/
$oHtml->node
$oHtml->node->childNodes
$oHtml->node->parentNode
$oHtml->node->firstChild
$oHtml->node->lastChild
等等...
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