<p>简单范例
<?phpinclude "simple_html_dom.php" ; //加载simple_html_dom.php文件
$html = file_get_html('http://www.google.com/'); //获取html$dom = new simple_html_dom(); //new simple_html_dom对象$dom->load($html) //加载html// find all images foreach($dom->find('img') as $element) { //获取img标签数组 echo $element->src . '<br>'; //获取每个img标签中的src}// find all links foreach($dom->find('a') as $element){ //获取a标签的数组 echo $element->href . '<br>'; //获取每个a标签中的href}</p><p>
$html = file_get_html('http://slashdot.org/'); //获取html$dom = new simple_html_dom(); //new simple_html_dom对象$dom->load($html); //加载html// find all article blocksforeach($dom->find('div.article') as $article) { $item['title'] = $article->find('div.title', 0)->plaintext; //plaintext 获取纯文本 $item['intro'] = $article->find('div.intro', 0)->plaintext; $item['details'] = $article->find('div.details', 0)->plaintext; $articles[] = $item;}print_r($articles);</p><p>}</p><p>
// create dom from string</p><p>$html = str_get_html('<div id="hello">hello</div><div id="world">world</div>');
$dom = new simple_html_dom(); //new simple_html_dom对象</p><p>$dom->load($html); //加载html
$dom->find('div', 1)->class = 'bar'; //class = 赋值 给第二个div的class赋值</p><p>$dom->find('div[id=hello]', 0)->innertext = 'foo'; //innertext内部文本</p><p>echo $dom; </p><p>// output: <div id="hello">foo</div><div id="world" class="bar">world</div></p><p> </p><p>dom methods & properties
name description
void __construct ( [string $filename] ) 构造函数,将文件名参数将自动加载内容,无论是文本或文件/ url。
string plaintext 纯文本
void clear () 清理内存
void load ( string $content ) 加载内容
string save ( [string $filename] ) dumps the internal dom tree back into a string. if the $filename is set, result string will save to file.
void load_file ( string $filename ) load contents from a from a file or a url.
void set_callback ( string $function_name ) 设置一个回调函数。
mixed find ( string $selector [, int $index] ) 找到元素的css选择器。返回第n个元素对象如果索引设置,否则返回一个数组对象。 </p>
<p> 4.find 方法详细介绍</p><p>
find ( string $selector [, int $index] )
// find all anchors, returns a array of element objects a标签数组
$ret = $html->find('a');</p><p>// find (n)th anchor, returns element object or null if not found (zero based)第一个a标签
$ret = $html->find('a', 0);</p><p>// find lastest anchor, returns element object or null if not found (zero based)最后一个a标签
$ret = $html->find('a', -1); </p><p>// find all <div> with the id attribute
$ret = $html->find('div[id]');</p><p>// find all <div> which attribute id=foo
$ret = $html->find('div[id=foo]'); </p><p>
// find all element which id=foo
$ret = $html->find('#foo');</p><p>// find all element which class=foo
$ret = $html->find('.foo');</p><p>// find all element has attribute id
$ret = $html->find('*[id]'); </p><p>// find all anchors and images a标签与img标签数组
$ret = $html->find('a, img'); </p><p>// find all anchors and images with the "title" attribute
$ret = $html->find('a[title], img[title]');</p><p>
// find all <li> in <ul>
$es = $html->find('ul li'); ul标签下的li标签数组</p><p>// find nested <div> tags
$es = $html->find('div div div'); div标签下div标签下div标签数组</p><p>// find all <td> in <table> which class=hello
$es = $html->find('table.hello td'); table标签下td标签数组</p><p>// find all td tags with attribite align=center in table tags
$es = $html->find(''table td[align=center]'); </p><p> 5.element 的方法
$e = $html->find("div", 0); //$e 所拥有的方法如下表所示
attribute name usage
$e->tag 标签
$e->outertext 外文本
$e->innertext 内文本
$e->plaintext 纯文本 </p><p> </p><p>// example
$html = str_get_html("<div>foo <b>bar</b></div>");
echo $e->tag; // returns: " div"
echo $e->outertext; // returns: " <div>foo <b>bar</b></div>"
echo $e->innertext; // returns: " foo <b>bar</b>"
echo $e->plaintext; // returns: " foo bar"</p><p>6.dom traversing 方法
method description
mixed$e->children ( [int $index] ) 子元素
element$e->parent () 父元素
element$e->first_child () 第一个子元素
element$e->last_child () 最后一个子元素
element$e->next_sibling () 后一个兄弟元素
element$e->prev_sibling () 前一个兄弟元素 </p><p>
// example
echo $html->find("#div1", 0)->children(1)->children(1)->children(2)->id;
// or
echo $html->getelementbyid("div1")->childnodes(1)->childnodes(1)->childnodes(2)->getattribute('id');
</p>
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