$fields = array(
'author' =>
'
' . ( $req ? '' : '' ) .
'
',
'email' =>
'
' . ( $req ? '' : '' ) .
'
',
'url' =>
'
' .
'
',
);
'email' =>
'
' . ( $req ? '' : '' ) .
'
',
'url' =>
'
' .
'
',
'url' =>
'
' .
'
',
add_filter('comment_form_default_fields', 'unset_url_field');
function unset_url_field($fields){
if(isset($fields['url']))
unset($fields['url']);
return $fields;
}