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[php] Simple HTML DOM

房東：大頭
發表時間：2011-03-16


// Create DOM from URL or file

$html = file_get_html('http://www.google.com/');



// Find all images

foreach($html->find('img') as $element)

       echo $element->src . '<br>';



// Find all links

foreach($html->find('a') as $element)

       echo $element->href . '<br>';








How to create HTML DOM object?


Top





// 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');




How to find HTML elements?


Top





// Find all anchors, returns a array of element objects

$ret = $html->find('a');



// Find (N)th anchor, 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]');




Supports these operators in attribute selectors:



































Filter Description
[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 <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 text blocks

$es = $html->find('text');



// Find all comment (<!--...-->) blocks

$es = $html->find('comment');




// 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);


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    • 1 樓住戶：小可
    發表時間：2011-03-16

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

    // Find all images
    foreach($html->find('img') as $element)
    echo $element->src . '
    ';

    // Find all links
    foreach($html->find('a') as $element)
    echo $element->href . '
    ';

    ?>


    $url='http://t.qq.com';
    $lines_array=file($url);
    $lines_string=implode('',$lines_array);
    echo htmlspecialchars($lines_string);
    ?>

    $url='http://t.qq.com';
    $lines_string=file_get_contents($url);
    echo htmlspecialchars($lines_string);
    ?>



    $url='http://t.qq.com';
    $handle=fopen($url,"rb");
    $lines_string="";
    do{
    $data=fread($handle,1024);
    if(strlen($data)==0){break;}
    $lines_string.=$data;
    }while(true);
    fclose($handle);
    echo htmlspecialchars($lines_string);
    ?>



    $url='http://t.qq.com';
    $ch=curl_init();
    $timeout=5;
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
    $lines_string=curl_exec($ch);
    curl_close($ch);
    echo htmlspecialchars($lines_string);
    ?>


    $fp = fsockopen("udp://127.0.0.1", 13, $errno, $errstr);
    if (!$fp) {
    echo "ERROR: $errno - $errstr
    \n";
    } else {
    fwrite($fp, "\n");
    echo fread($fp, 26);
    fclose($fp);
    }
    ?>


    $url='http://t.qq.com';
    $lines_string=file_get_contents($url);
    eregi('(.*)',$lines_string,$title);
    echo htmlspecialchars($title[0]);
    ?>



    $url='http://www.yahoo.com.tw';
    $html=new DOMDocument();
    $html->loadHTMLFile($url);
    $title=$html->getElementsByTagName('title');
    echo $title->item(0)->nodeValue;
    ?>




    $url='http://www.psper.tw';
    include_once('../simplehtmldom/simple_html_dom.php');
    $html=file_get_html($url);
    $title=$html->find('title');
    echo $title[0]->plaintext;
    ?>



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