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File Content: functions.php

<?php

if (!function_exists('curly_core_export_options')) {
    /**
     * Function that export theme options from db.
     */
    function curly_core_export_options() {
        $options = get_option("mkdf_options_curly");
        $output = base64_encode(serialize($options));

return $output;
    }

}
if (!function_exists('curly_core_export_custom_sidebars')) {
    function curly_core_export_custom_sidebars() {
        $custom_sidebars = get_option("mkdf_sidebars");
        $output = base64_encode(serialize($custom_sidebars));

return $output;
    }
}

if (!function_exists('curly_core_export_widgets_sidebars')) {
    function curly_core_export_widgets_sidebars() {
        $data = array();
        $data['sidebars'] = curly_core_export_sidebars();
        $data['widgets'] = curly_core_export_widgets();

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

return $output;
    }
}

if (!function_exists('curly_core_export_widgets')) {
    function curly_core_export_widgets() {
        global $wp_registered_widgets;

$all_widgets = array();

foreach ($wp_registered_widgets as $widget_id => $widget_params) {
            $all_widgets[] = $widget_params['callback'][0]->id_base;
        }

foreach ($all_widgets as $widget_id) {
            $curly_widget_data = get_option('widget_' . $widget_id);

if (!empty($curly_widget_data)) {
                $widget_datas[$widget_id] = $curly_widget_data;
            }
        }

unset($all_widgets);

return $widget_datas;
    }
}

if (!function_exists('curly_core_export_sidebars')) {
    function curly_core_export_sidebars() {
        $sidebars = get_option("sidebars_widgets");
        $sidebars = curly_core_exclude_sidebar_keys($sidebars);

return $sidebars;
    }
}

if (!function_exists('curly_core_exclude_sidebar_keys')) {
    function curly_core_exclude_sidebar_keys($keys = array()) {
        if (!is_array($keys)) {
            return $keys;
        }

unset($keys['wp_inactive_widgets']);
        unset($keys['array_version']);

return $keys;
    }
}

if (!function_exists('curly_core_export_widgets')) {
    /**
     * Function that export widgets from db.
     */
    function curly_core_export_widgets() {
        global $wp_registered_widgets;

$all_widgets = array();

foreach ($wp_registered_widgets as $widget_id => $widget_params) {
            $all_widgets[] = $widget_params['callback'][0]->id_base;
        }

foreach ($all_widgets as $widget_id) {
            $curly_widget_data = get_option('widget_' . $widget_id);

if (!empty($curly_widget_data)) {
                $widget_datas[$widget_id] = $curly_widget_data;
            }

}

unset($all_widgets);

return $widget_datas;
    }
}

if (!function_exists('curly_core_import_theme_options')) {
    /**
     * Function that import theme options to db.
     * It hooks to ajax wp_ajax_curly_core_import_theme_options action.
     */
    function curly_core_import_theme_options() {
        if (current_user_can('edit_theme_options')) {

if (empty($_POST) || !isset($_POST)) {
                curly_core_ajax_status('error', esc_html__('Import field is empty', 'curly-core'));
            } else {
                $data = $_POST;

if (wp_verify_nonce($data['nonce'], 'mkdf_import_theme_options_secret_value')) {
                    $content = $data['content'];
                    $unserialized_content = unserialize(base64_decode($content));
                    update_option('mkdf_options_curly', $unserialized_content);
                    curly_core_ajax_status('success', esc_html__('Options are imported successfully', 'curly-core'));
                } else {
                    curly_core_ajax_status('error', esc_html__('Non valid authorization', 'curly-core'));
                }
            }
        } else {
            curly_core_ajax_status('error', esc_html__('You don\'t have privileges for this operation', 'curly-core'));
        }
    }

add_action('wp_ajax_curly_core_import_theme_options', 'curly_core_import_theme_options');
}

if (!function_exists('curly_core_import_custom_sidebars')) {
    /**
     * Function that import custom sidebars to db.
     * It hooks to ajax wp_ajax_curly_core_import_sidebar_and_widgets action.
     */
    function curly_core_import_custom_sidebars() {
        if (current_user_can('edit_theme_options')) {

if (empty($_POST) || !isset($_POST)) {
                curly_core_ajax_status('error', esc_html__('Import field is empty', 'curly-core'));
            } else {
                $data = $_POST;

if (wp_verify_nonce($data['nonce'], 'mkdf_import_custom_sidebars_secret_value')) {
                    $content = $data['content'];
                    $unserialized_content = unserialize(base64_decode($content));

update_option('mkdf_sidebars', $unserialized_content);
                    curly_core_ajax_status('success', esc_html__('Custom sidebars imported successfully', 'curly-core'));

} else {
                    curly_core_ajax_status('error', esc_html__('Non valid authorization', 'curly-core'));
                }
            }
        } else {
            curly_core_ajax_status('error', esc_html__('You don\'t have privileges for this operation', 'curly-core'));
        }
    }

add_action('wp_ajax_curly_core_import_custom_sidebars', 'curly_core_import_custom_sidebars');
}

if (!function_exists('curly_core_import_widgets')) {
    /**
     * Function that import sidebars and widgets to db.
     * It hooks to ajax wp_ajax_curly_core_import_sidebar_and_widgets action.
     */
    function curly_core_import_widgets() {
        if (current_user_can('edit_theme_options')) {

if (empty($_POST) || !isset($_POST)) {
                curly_core_ajax_status('error', esc_html__('Import field is empty', 'curly-core'));
            } else {
                $data = $_POST;
                if (wp_verify_nonce($data['nonce'], 'mkdf_import_widgets_secret_value')) {
                    $content = $data['content'];
                    $unserialized_content = unserialize(base64_decode($content));

foreach ((array)$unserialized_content['widgets'] as $widget_id => $widget_data) {
                        update_option('widget_' . $widget_id, $widget_data);
                    }

$sidebars = get_option("sidebars_widgets");
                    unset($sidebars['array_version']);
                    $data = $unserialized_content;

if (is_array($data['sidebars'])) {
                        $sidebars = array_merge((array)$sidebars, (array)$data['sidebars']);
                        unset($sidebars['wp_inactive_widgets']);
                        $sidebars = array_merge(array('wp_inactive_widgets' => array()), $sidebars);
                        $sidebars['array_version'] = 2;
                        wp_set_sidebars_widgets($sidebars);
                    }

curly_core_ajax_status('success', esc_html__('Widgets imported successfully', 'curly-core'));
                } else {
                    curly_core_ajax_status('error', esc_html__('Non valid authorization', 'curly-core'));
                }
            }
        } else {
            curly_core_ajax_status('error', esc_html__('You don\'t have privileges for this operation', 'curly-core'));
        }
    }

add_action('wp_ajax_curly_core_import_widgets', 'curly_core_import_widgets');
}