There is a *large* bug in the the set_content() method (as well as the new_child() method)

For instance, if i try to add a new node with content containing an entity like this, it will convert the entity to the original character.

$bugItemNode->new_child( 'title', '' );
$bugItemNode->set_content( 'HtmlTagContainer's add() method does not accept strings as an argument.' );

But when you use $doc->dumpmem(), the output will be the following:

...<title>HtmlTagContainer's add() method does not accept strings as an argument.</title>

Notice that it contains an apostrophe and it is NOT &apos;.  This is a huge bug since it does not output wellformed XML files.

Obviously, if you simply write the apostrophe character, it will do nothing to convert it to &apos; as well.  This is serious and will hinder MANY applications that need to parse the resultant XML content.  Developers, please fix this.

Ken Egervari