Dynamic Sidebar problem loading

I have been working on my wordpress site and have it near completion. I am running into an issue with the “dynamic sidebar”. It will not display where I am referencing it to. I have read through countless posts in an effort to resolve my issue. Please help

This is the code I inserted into my functions.php file:
register_sidebar(array(
‘name’ => ‘sidebar1’,
‘id’ => ‘sidebar1’,
‘before_widget’ => ‘

• ‘,
  ‘after_widget’ => “

“,
‘before_title’ => “<h3>”,
‘after_title’ => “</h3>,
));

This is the code I inserted into my “sidebar.php” file:
<?php if ( is_sidebar_active(‘single-top’) ) {
echo ‘<div id=”single-top”>

‘ ;
dynamic_sidebar(‘single-top’);
echo ‘

</div>’ ;
} ?>

Thank you for your help.