[TYPO3] Cleanup unset markers

[Marek Matis]

Hi Folks,

do you now, how to cleanup unset markers?

Example:
..
$substArray = array();
$datarowcontent = '<input type="text" name="surname" value="###NAME###" />';
$content =
$this->cObj->substituteMarkerArrayCached($datarowcontent,$substArray);
echo $content;
..
Output:
<input type="text" name="surname" value="###NAME###" />

I need output:
<input type="text" name="surname" value="" />

Of course I can use e.g. "$content = preg_replace ('/###[\w]+###/',
$content); " but...

Thanks.
Marek