simplehtmldom Doc api帮助文档

2019-04-08 15:32:41王冬梅






// Create a DOM object from a string
$html = str_get_html('<html><body>Hello!</body></html>');

// Create a DOM object from a URL
$html = file_get_html('http://www.google.com/');

// Create a DOM object from a HTML file
$html = file_get_html('test.htm');



// Create a DOM object
$html = new simple_html_dom();

// Load HTML from a string
$html->load('<html><body>Hello!</body></html>');

// Load HTML from a URL
$html->load_file('http://www.google.com/');

// Load HTML from a HTML file
$html->load_file('test.htm');


// Find all anchors, returns a array of element objects
$ret = $html->find('a');

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

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

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

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


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

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

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

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



// 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]');

// 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);

Supports these operators in attribute selectors:


[attribute] Matches elements that have the specified attribute.
[attribute=value] Matches elements that have the specified attribute with a certain value.
[attribute!=value] Matches elements that don't have the specified attribute with a certain value.
[attribute^=value] Matches elements that have the specified attribute and it starts with a certain value.
[attribute$=value] Matches elements that have the specified attribute and it ends with a certain value.
[attribute*=value] Matches elements that have the specified attribute and it contains a certain value.

// Find all text blocks
$es = $html->find('text');

// Find all comment (<!--...-->) blocks
$es = $html->find('comment');

// Get a attribute ( If the attribute is non-value attribute (eg. checked, selected...), it will returns true or false)
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