Is it possible to achieve same using getElementById

Question

With the code below I can get elements of an html table using DOM's getElementsByTagName and it works.

$dom = new DOMDocument();
$dom->loadHTMLFile("any.html");

## get table by tagName

$tables= $dom->getElementsByTagName('table');
$table = $tables->item(0);

foreach($table->getElementsByTagName('tr') as  $key =>$tr){
     $tr->getElementsByTagName('td')->item(0)->nodeValue;
}

but I want to get table by getElementById. Is it possible by using table's id?

possible duplicate of [GetElementById Problems](http://stackoverflow.com/questions/3391942/php-html-domdocument-getelementbyid-problems) — Gordon, Mar 08 '12 at 11:37

Daniel A. White · Accepted Answer · 2012-03-07T16:59:21.273

2

Actually you need to do this first:

$doc->validateOnParse = true;

then

$tableId = 'someId';
$table = $dom->getElementById($tableId);

foreach($table->getElementsByTagName('tr') as  $key =>$tr){
     $tr->getElementsByTagName('td')->item(0)->nodeValue;
}

edited Mar 07 '12 at 16:59

answered Mar 07 '12 at 16:29

Daniel A. White

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I get the error "Call to a member function getElementsByTagName() on a non-object" – mustafa Mar 07 '12 at 16:41
@mustafa - does the table exist for with id? – Daniel A. White Mar 07 '12 at 16:48
Yes there is a html table with id 'tableid'. – mustafa Mar 07 '12 at 16:52
@mustafa and did you change 'someId' in the above code with 'tableid' before you tried the code? – Gordon Mar 07 '12 at 17:26
@Gordon : yes, here is the line: $table= $dom->getElementById('tableid'); – mustafa Mar 07 '12 at 17:41

Is it possible to achieve same using getElementById

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