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HtmlParserModel

php html解析工具,类似与PHP Simple HTML DOM Parser。 由于基于php模块tidy,所以在解析html时的效率比 PHP Simple HTML DOM Parser 快2倍多。 并提供广度优先查询find()和深度优先查询find2() 两种查询方式,可根据自己的情况选择使用。 因为代码实现的问题,在查询全部时深度优先比广度优先快一点。

================================================================================

Example
<?php
$html = '<html>
  <head>
    <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>';
//现在支持直接输入html字符串了
$html_dom = new HtmlParserModel($html);
//$html_dom->parseStr($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();
}
echo $div->getPlainText();
echo $p1->getPlainText();
echo $pi->class;
?>

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

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