Using Anonymous Functions

[aubreypwd]

This works:

$html = new phpHtmlWriter();
echo $html->tag('hr');
echo $html->tag('pre', gffd_debug_info() );

function gffd_debug_info(){
    return "String"
}

But, this does not:

$html = new phpHtmlWriter();
echo $html->tag('hr');
echo $html->tag('pre',
    function(){
        return "String"
    }       
);

Error I get:

Catchable fatal error: Object of class Closure could not be converted to string in .../php-html-writer/lib/phpHtmlWriterElement.php on line 50

Workaround that works using call_user_func:

$html = new phpHtmlWriter();
echo $html->tag('hr');
echo $html->tag('pre',
    call_user_func(
        function(){
            return "String"
        }
    )       
);

Not really sure if you can call an anonymous function like in the second example, so the workaround may be the only option. If there's not a way, you might want to consider including this in documentation?