Question

Working on dom html . I want to convert node value to string:

 $html = @$dom->loadHTMLFile('url');


  $dom->preserveWhiteSpace = false;


  $tables = $dom->getElementsByTagName('body');


  $rows = $tables->item(0)->getElementsByTagName('tr');

  // loop over the table rows
  foreach ($rows as $text =>$row)
  {
$t=1;

   // get each column by tag name
      $cols = $row->getElementsByTagName('td');
//getting values

$rr = @$cols->item(0)->nodeValue;

print $rr; ( it prints values of all 'td' tag fine)
}
print $rr; ( it prints nothing) I want it to print here 

?>

I want nodevalues to be converted into string for further manipulation.

Answer 1

Every time you loop through the foreach you overwrite the value of the $rr variable. The second print $rr will print the value of the last td – if it’s empty, then it will print nothing.

If what you are trying to do is print all the values, instead write them to an array:

$rr = array();
foreach($rows as $text =>$row) {
  $rr[] = $cols->item(0)->nodeValue;
}
print_r($rr);