WP Search Engines Blocked

gistfile1.aw

<?php if ( current_user_can('manage_options')) {  
	$table = $wpdb->prefix . "options";
		
	$private = $wpdb->get_var("SELECT option_value FROM $table WHERE option_name = 'blog_public'");
		
	if ($private == 0) {
		echo '<a href="#" class="btn btn-danger">Search Engines Blocked!</a>';
	}
		
	else {
		echo '<a href="#" class="btn btn-success">Search Engines Unblocked!</a>';
	}
} ?>