如何在PHP中按类名获取HTML表格元素

Question

Here is a table whose classname is nick. I am trying to get this table by class name "nick".

<table  class="nick">
              <tbody>
              <tr>

                <th> a  </th>
                <th>    b</th>
                <th> c  </th>
          </tr>
 <tr>
  <td>1</td>
  <td>2</td>
  <td>3</td>
 </tr>

        </tbody></table>    

here is the code.

    include_once('simple_html_dom.php');
    $html = file_get_html('http://www.example.com');

  $table = $html->find('.nick');
  echo $table . '<br>';

?>

when i get table by tagname it works but when i get it by class name it shows the msg "Array to string conversion" and it returns "Array".

how can i get this table by class nick and its rows and coloms.Also threre are 2 table which has classname "nick".

Answer 1

You forgot to put the index inside ->find() . Without providing the index, this will return an array. When you put the index (in this case 0 ), you'll point to the first found element with that class.

$table = $html->find('.nick', 0);
                           // ^ this is important
echo $table;

Reference:

mixed find ( string $selector [, int $index] )

Find elements by the CSS selector. Returns the Nth element object if index is set, otherwise return an array of object.

Of course, the first table falls under zero index ( 0 ), the second on one ( 1 ).

If you want to go the extra mile, you can check first if there tables with that class name if you want the ->find() method untouched:

$table = $html->find('.nick');
if(count($table) > 0) { // if found
    echo $table[0]; // echo first table
} else {
    // not found
}

Answer 2

You can get right html using class in php like below code.

include_once('simple_html_dom.php');
$html = file_get_html('http://www.example.com');

$table = $html->find('table.nick');
//OR
$table = $html->find('table[class=nick]');
echo $table . '<br>';

Answer 3

Use class name & index like below:

1st table :

$table1 = $html->find('table[class=nick]', 0); 

2nd table :

$table2 = $html->find('table[class=nick]', 1);