SimpleHtmlDom extract content inside a div not from its child - php

Question

I want to extract content from a div, but not needed the contents from its childrens. I m using simplehtmldom parser and the following code
//html code
<div id="frame">
Needed this content
Not needed
</div>
//php code
$elem = file_get_html($url);
$content = $elem->find('div#frame')->plaintext;
echo $content;
but this code results,
Needed this contentNot needed
I want the result as,
Needed this content
How to change th code for getting that output. Help plz. thanks in advance

Answer 1

The only way I can think of, is to delete all your div's children, then print the left content... Here's how:
// includes Simple HTML DOM Parser
include "simple_html_dom.php";
$text = '<div id="frame">
<span><b>Not needed</b></span>
Needed this content
Not needed
</div>';
//Create a DOM object
$html = new simple_html_dom();
// Load HTML from a string
$html->load($text);
$content = $html->find('div#frame',0);
// Before
echo $content->innertext;
// Delete all unwanted children
foreach( $content->children() as $i => $unwantedTags ) {
echo "<br/>$i => ".$unwantedTags->tag;
$unwantedTags->outertext = '';
}
// After
echo "<br/>".$content->innertext;
// Clear dom object
$html->clear();
unset($html);
See this working DEMO