/wp-content/themes/bridge/export/qode-export.php

<?php

if (!function_exists ('add_action')) {

		header('Status: 403 Forbidden');

		header('HTTP/1.1 403 Forbidden');

		exit();

}



class Qode_Export {



	public $export_values = "";



	public function __construct() {

		add_action('admin_menu', array($this, 'qode_admin_export'));

	}



	/**

	 * Method that checks 'export_option' variable in $_REQUEST

	 * and calls adequate method

	 */

	public function init_qode_export() {



		if(isset($_REQUEST['export_option'])) {

			switch($_REQUEST['export_option']) {

				case "widgets":

					$this->export_widgets_sidebars();

					break;

				case "custom_sidebars":

					$this->export_custom_sidebars();

					break;

				case "qode_options":

					$this->export_options();

					break;

				case "qode_menus":

					$this->export_qode_menus();

					break;

				case "setting_pages":

					$this->export_settings_pages();

					break;

				case "all":

					$this->export_all();

					break;

				default:

					break;

			}

		}

	}



	/**

	 * Method that exports custom made sidebars

	 *

	 * @param bool $save_file whether to save to file or not

	 * @return bool | array

	 */

	public function export_custom_sidebars($save_file = false){

		$custom_sidebars = get_option("qode_sidebars");



		$output = base64_encode(serialize($custom_sidebars));

		return $this->save_as_txt_file("custom_sidebars.txt", $output, $save_file);

	}



	/**

	 * Method that exports theme options

	 *

	 * @param bool $save_file whether to save to file or not

	 * @return bool | array

	 */

	public function export_options($save_file = false) {

		$qode_options = get_option("qode_options_proya");

		$output = base64_encode(serialize($qode_options));



		return $this->save_as_txt_file("options.txt", $output, $save_file);

	}



	/**

	 * Method that exports widgets

	 *

	 * @param $save_file bool whether to save exported output to file

	 * @return bool | array

	 *

	 * @see Qode_Export::export_sidebars

	 * @see Qode_Export::export_widgets

	 */

	public function export_widgets_sidebars($save_file = false) {

		$this->data = array();

		$this->data['sidebars'] = $this->export_sidebars(); 

		$this->data['widgets'] 	= $this->export_widgets();

		$output = base64_encode(serialize($this->data));



		return $this->save_as_txt_file("widgets.txt", $output, $save_file);

	}



	public function export_widgets(){

		global $wp_registered_widgets;



		$all_qode_widgets = array();

		

		foreach ($wp_registered_widgets as $qode_widget_id => $widget_params) {

			$all_qode_widgets[] = $widget_params['callback'][0]->id_base;

		}



		foreach ($all_qode_widgets as $qode_widget_id) {

			$qode_widget_data = get_option( 'widget_' . $qode_widget_id );



			if ( !empty($qode_widget_data) ) {

				$widget_datas[ $qode_widget_id ] = $qode_widget_data;

			}



		}



		unset($all_qode_widgets);



		return $widget_datas;

	

	}



	public function export_sidebars(){

		$qode_sidebars = get_option("sidebars_widgets");

		$qode_sidebars = $this->exclude_sidebar_keys($qode_sidebars);



		return $qode_sidebars;

	}



	private function exclude_sidebar_keys( $keys = array() ){

		if (!is_array($keys)) {

			return $keys;

		}



		unset($keys['wp_inactive_widgets']);

		unset($keys['array_version']);



		return $keys;

	}



	/**

	 * Method that exports navigation menus

	 *

	 * @param bool $save_file whether to save file or not

	 * @return bool | array

	 * @see get_nav_menu_locations()

	 */

	public function export_qode_menus($save_file = false){

		global $wpdb;

		

		$this->data = array();

		$locations = get_nav_menu_locations();



		$terms_table = $wpdb->prefix . "terms";

		foreach ((array)$locations as $location => $menu_id) {

			$menu_slug = $wpdb->get_results($wpdb->prepare("SELECT * FROM $terms_table where term_id=%d", $menu_id), ARRAY_A);

			if (count($menu_slug) > 0)

				$this->data[ $location ] = $menu_slug[0]['slug'];

		}



		$output = base64_encode(serialize( $this->data ));

		return $this->save_as_txt_file("menus.txt", $output, $save_file);

	}



	/**

	 * Method that exports necessary options from Settings pages

	 *

	 * @param bool $save_file whether to save file or not

	 * @return bool | array

	 */

	public function export_settings_pages($save_file = false) {

		$qode_static_page = get_option("page_on_front");

		$qode_post_page = get_option("page_for_posts");

		$qode_show_on_front = get_option("show_on_front");



		$qode_settings_pages = array(

			'show_on_front' => $qode_show_on_front,

			'page_on_front' => $qode_static_page,

			'page_for_posts' => $qode_post_page

		);



		$output = base64_encode(serialize($qode_settings_pages));



		return $this->save_as_txt_file("settingpages.txt", $output, $save_file);

		

	}



	/**

	 * Method that exports all options and sends a zip file as an output to browser

	 *

	 * @see Qode_Export::export_settings_pages

	 * @see Qode_Export::export_widgets_sidebars

	 * @see Qode_Export::export_qode_menus

	 * @see Qode_Export::export_custom_sidebars

	 * @see Qode_Export::export_options

	 */

	public function export_all() {

		global $wpdb;

		

		$files_array = array();



		//get all files created and all options exported

		$settings_file = $this->export_settings_pages(true);

		$widgets_file = $this->export_widgets_sidebars(true);

		$menus_file = $this->export_qode_menus(true);

		$custom_sidebar_file = $this->export_custom_sidebars(true);

		$options_file = $this->export_options(true);



		//add all generated files to files array

		if($settings_file) {

			$files_array[] = $settings_file;

		}



		if($widgets_file) {

			$files_array[] = $widgets_file;

		}



		if($menus_file) {

			$files_array[] = $menus_file;

		}



		if($custom_sidebar_file) {

			$files_array[] = $custom_sidebar_file;

		}



		if($options_file) {

			$files_array[] = $options_file;

		}



		//if we have added files to files array

		if(is_array($files_array) && count($files_array)) {

			/**

			 * Generate zip file name. It will contain name of the folder where WP is installed

			 * and current time stamp (for caching purposes)

			 */

			$wp_dir_array = parse_url(home_url());

			$wp_dir_name = ltrim(end($wp_dir_array), '/');

			//$zip_name = $wp_dir_name.'_'.date('y-m-d').'_'.date('H').'_'.date('s').'.zip';

			$zip_name = $wpdb->dbname.'.zip';



			/**

			 * Instantiate ZipArchive class and add all files to zip

			 */

			$zip = new ZipArchive();

			$zip->open($zip_name, ZipArchive::CREATE);

			foreach($files_array as $file) {

				$zip->addFile($file['full_path'], $file['filename']);

			}



			$zip->close();



			//delete all created export files from server

			foreach ($files_array as $file) {

				if(file_exists(dirname(__FILE__).'/'.$file['filename'])) {

					unlink(dirname(__FILE__).'/'.$file['filename']);

				}

			}



			//send output to browser so user can download generated zip

			header('Content-Type: application/zip');

			header('Content-disposition: attachment; filename='.$zip_name);

			header('Content-Length: ' . filesize($zip_name));

			readfile($zip_name);

		}

	}



	/**

	 * Method that saves output as a txt file. It has an option for sending file to browser

	 * or saving it on file system

	 *

	 * @param $file_name string name of the file to save

	 * @param $output string content of the file

	 * @param bool $save_to_file whether to save file to file system or not

	 * @return array|bool if file is saved on file system it returns an array that contains

	 * 'full_path' of the file and 'filename' of the file. If it fails to save file it returns false

	 */

	public function save_as_txt_file($file_name, $output, $save_to_file = false){

		if($save_to_file) {

			if(file_put_contents(get_template_directory().'/export/'.$file_name, $output)) {

				return array(

					'full_path' => get_template_directory().'/export/'.$file_name,

					'filename' => $file_name

				);

			}



			return false;

		} else {

			header("Content-type: application/text",true,200);

			header("Content-Disposition: attachment; filename=$file_name");

			header("Pragma: no-cache");

			header("Expires: 0");

			print $output;

			exit;

		}

	}



	/**

	 * Method that adds export admin page

	 */

	public function qode_admin_export() {

		if(isset($_REQUEST['export'])) {

			$this->init_qode_export();

		}



		$this->pagehook = add_menu_page(

			'Qode Theme', esc_html__('Qode Export', 'qode'),

			'manage_options',

			'qode_options_export_page',

			array($this, 'qode_generate_export_page')

		);

	}



	/**

	 * Method that

	 */

	public function qode_generate_export_page() {



		?>

		<div id="qode-metaboxes-general" class="wrap">

		    <form method="post" action="">

				<div id="poststuff" class="metabox-holder">

					<div id="post-body" class="has-sidebar">

						<div id="post-body-content" class="has-sidebar-content">

							<table class="form-table">

								<tbody>

								<tr><td scope="row" width="150"><h2><?php esc_html_e('Export', 'qode'); ?></h2></td></tr>

								<tr valign="middle">



									<td>

										<form method="post" action="">

											<input type="hidden" name="export_option" value="widgets" />

											<input type="submit" value="Export Widgets" name="export" />

										</form>

										<br />

										<br />

										<form method="post" action="">

											<input type="hidden" name="export_option" value="custom_sidebars" />

											<input type="submit" value="Export Custom Sidebars" name="export" />

										</form>

										<br />

										<form method="post" action="">

											<input type="hidden" name="export_option" value="qode_options" />

											<input type="submit" value="Export Options" name="export" />

										</form>

										<br />

										<form method="post" action="">

											<input type="hidden" name="export_option" value="qode_menus" />

											<input type="submit" value="Export Menus" name="export" />

										</form>

										<br />

										<form method="post" action="">

											<input type="hidden" name="export_option" value="setting_pages" />

											<input type="submit" value="Export Setting Pages" name="export" />

										</form>

										<br />

										<form method="post" action="">

											<input type="hidden" name="export_option" value="all" />

											<input type="submit" value="Export all" name="export" />

										</form>

									</td>

								</tr>

								</tbody>

							</table>

						</div>

					</div>

					<br class="clear"/>

				</div>

		    </form>



		</div>



<?php	}

}



$my_Qode_Export = new Qode_Export();