Sindbad~EG File Manager

<?php
//If clear cache
if(is_admin() && isset($_POST['method']) && !empty($_POST['method']) && $_POST['method'] == 'clear_cache')
{
	//Get theme cache folder
	$upload_dir = wp_upload_dir();
	$cache_dir = '';
	$cache_url = '';
	
	if(isset($upload_dir['basedir']))
	{
		$cache_dir = COURSECTOR_THEMEUPLOAD;
	}

	if(file_exists($cache_dir."/combined.js"))
	{
		unlink($cache_dir."combined.js");
	}
	
	if(file_exists($cache_dir."/combined.css"))
	{
		unlink($cache_dir."combined.css");
	}
	
	exit;
}

//If export settings
if(is_admin() && isset($_POST['pp_export_current']) && !empty($_POST['pp_export_current']))
{
	$json_file_name = COURSECTOR_THEMENAME.'Theme_Export_'.date('m-d-Y_hia');

	header('Content-disposition: attachment; filename='.$json_file_name.'.json');
	header('Content-type: application/json');
	
	/**
	*	Setup admin setting
	**/
	require_once get_template_directory() . "/lib/admin.lib.php";

	$export_options_arr = array();
	
	if(isset($options) && !empty($options) && is_array($options))
	{
		foreach ($options as $value) 
		{
			if(isset($value['id']) && !empty($value['id']))
			{ 
				$export_options_arr[$value['id']] = get_option($value['id']);
			}
		}
	}

	echo json_encode($export_options_arr);
	
	exit;
}

//If delete sidebar
if(is_admin() && isset($_POST['sidebar_id']) && !empty($_POST['sidebar_id']) && current_user_can('manage_options'))
{
	$current_sidebar = get_option('pp_sidebar');
	
	if(isset($current_sidebar[ $_POST['sidebar_id'] ]))
	{
		unset($current_sidebar[ $_POST['sidebar_id'] ]);
		update_option( "pp_sidebar", $current_sidebar );
	}
	
	echo 1;
	exit;
}

//If delete image
if(is_admin() && current_user_can('manage_options') && isset($_POST['field_id']) && !empty($_POST['field_id']) && isset($_GET["page"]) && $_GET["page"] == "functions.php" )
{
	$current_val = get_option($_POST['field_id']);
	delete_option( $_POST['field_id'] );
	
	echo 1;
	exit;
}
?>