Summary of usage based on simple_html_dom_PHP tutorial

Copy code The code is as follows:

简单范例
$html = file_get_html('http://www.google.com/');  //获取html$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 $element->src . '
';    //获取每个img标签中的src}// Find all links foreach($dom->find('a') as $element){    //获取a标签的数组       echo $element->href . '
';    //获取每个a标签中的href}

$html = file_get_html('http://slashdot.org/');   //获取html$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);

}

// Create DOM from string

$html = str_get_html('

Hello

World

');
$dom = new simple_html_dom();     //new simple_html_dom对象

$dom->load($html);      //加载html
$dom->find('div', 1)->class = 'bar';    //class = 赋值 给第二个div的class赋值

$dom->find('div[id=hello]', 0)->innertext = 'foo';   //innertext内部文本

echo $dom;

// Output:

foo

World

DOM methods & properties
Name Description
void __construct ( [string $filename] ) constructor, the file name parameter will be automatically loaded Content, whether text or file/url.
string plaintext plain text
void clear () clear memory
void load ( string $content ) load content
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 ) Set a callback function.
mixed find ( string $selector [, int $index] ) finds the CSS selector of the element. Returns the nth element object if index is set, otherwise returns an array object.

4. Detailed introduction to find method

find ( string $selector [, int $index] )
// Find all anchors , returns an array of element objects a tag array
$ret = $html->find('a');

// Find (N)th anchor, returns element object or null if not found (zero based)The first a tag
$ret = $html->find('a', 0);

// Find lastest anchor, returns element object or null if not found (zero based)The last a tag
$ret = $html->find('a', -1);

// Find all with the id attribute
$ret = $html->find('div[id]');

// Find all

which attribute id=foo
$ret = $html->find('div[id=foo]');

// Find all element which id=foo
$ret = $ html->find('#foo');

// Find all element which class=foo
$ret = $html->find('.foo');< ;/P>

// Find all element has attribute id
$ret = $html->find('*[id]');

// Find all anchors and images a tag and img tag array
$ret = $html->find('a, img');

// Find all anchors and images with the "title" attribute
$ret = $html->find('a[title], img[title]');

// Find all

in
$es = $html->find('ul li'); li tag array under ul tag

// Find Nested

tags
$ es = $html->find('div div div'); div tag under div tag div tag array

// Find all

in which class= hello
$es = $html->find('table.hello td'); td tag array under table tag

// Find all td tags with attribite align=center in table tags
$es = $html->find(''table td[align=center]');

5.Element method
$e = $html-> ;find("div", 0); //The methods owned by $e are as shown in the following table
Attribute Name Usage
$e->tag tag
$e->outertext foreign text
$e->innertext inner text
$e->plaintext plain text

// Example
$html = str_get_html( "

foo bar

");
echo $e->tag; // Returns: " div"
echo $e-> outertext; // Returns: "

foo bar

"
echo $e->innertext; // Returns: " foo bar"
echo $e->plaintext; // Returns: " foo bar"

6.DOM traversing method
Method Description
mixed$e-> ;children ( [int $index] ) child element
element$e->parent () parent element
element$e->first_child () first child element
element$e-> ;last_child () The last child element
element$e->next_sibling () The next sibling element
element$e->prev_sibling () The previous sibling element

// 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') ;

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