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<?php

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/**

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* @package Freemius

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* @license https://www.gnu.org/licenses/gpl-3.0.html GNU General Public License Version 3

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* @since 1.0.7

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if ( ! defined( 'ABSPATH' ) ) {

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exit;

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}

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/**

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* Class FS_Key_Value_Storage

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* @property int $install_timestamp

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* @property int $activation_timestamp

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* @property int $sync_timestamp

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* @property object $sync_cron

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* @property int $install_sync_timestamp

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* @property array $connectivity_test

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* @property array $is_on

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* @property object $trial_plan

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* @property bool $has_trial_plan

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* @property bool $trial_promotion_shown

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* @property string $sdk_version

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* @property string $sdk_last_version

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* @property bool $sdk_upgrade_mode

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* @property bool $sdk_downgrade_mode

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* @property bool $plugin_upgrade_mode

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* @property bool $plugin_downgrade_mode

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* @property string $plugin_version

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* @property string $plugin_last_version

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* @property bool $is_plugin_new_install

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* @property bool $was_plugin_loaded

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* @property object $plugin_main_file

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* @property bool $prev_is_premium

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* @property array $is_anonymous

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* @property bool $is_pending_activation

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* @property bool $sticky_optin_added

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* @property object $uninstall_reason

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* @property object $subscription

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class FS_Key_Value_Storage implements ArrayAccess, Iterator, Countable {

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/**

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* @var string

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protected $_id;

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/**

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* @since 1.2.2

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* @var string

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protected $_secondary_id;

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/**

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* @since 2.0.0

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* @var int The ID of the blog that is associated with the current site level options.

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private $_blog_id = 0;

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/**

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* @since 2.0.0

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* @var bool

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private $_is_multisite_storage;

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/**

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* @var array

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protected $_data;

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/**

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* @var FS_Key_Value_Storage[]

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private static $_instances = array();

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/**

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* @var FS_Logger

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protected $_logger;

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/**

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* @param string $id

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* @param string $secondary_id

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* @param bool $network_level_or_blog_id

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* @return FS_Key_Value_Storage

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static function instance( $id, $secondary_id, $network_level_or_blog_id = false ) {

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$key = $id . ':' . $secondary_id;

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if ( is_multisite() ) {

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if ( true === $network_level_or_blog_id ) {

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$key .= ':ms';

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} else if ( is_numeric( $network_level_or_blog_id ) && $network_level_or_blog_id > 0 ) {

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$key .= ":{$network_level_or_blog_id}";

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} else {

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$network_level_or_blog_id = get_current_blog_id();

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$key .= ":{$network_level_or_blog_id}";

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}

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}

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if ( ! isset( self::$_instances[ $key ] ) ) {

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self::$_instances[ $key ] = new FS_Key_Value_Storage( $id, $secondary_id, $network_level_or_blog_id );

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}

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return self::$_instances[ $key ];

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}

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protected function __construct( $id, $secondary_id, $network_level_or_blog_id = false ) {

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$this->_logger = FS_Logger::get_logger( WP_FS__SLUG . '_' . $secondary_id . '_' . $id, WP_FS__DEBUG_SDK, WP_FS__ECHO_DEBUG_SDK );

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$this->_id = $id;

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$this->_secondary_id = $secondary_id;

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if ( is_multisite() ) {

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$this->_is_multisite_storage = ( true === $network_level_or_blog_id );

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if ( is_numeric( $network_level_or_blog_id ) ) {

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$this->_blog_id = $network_level_or_blog_id;

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}

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} else {

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$this->_is_multisite_storage = false;

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}

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$this->load();

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}

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protected function get_option_manager() {

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return FS_Option_Manager::get_manager(

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WP_FS__ACCOUNTS_OPTION_NAME,

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true,

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$this->_is_multisite_storage ?

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true :

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( $this->_blog_id > 0 ? $this->_blog_id : false )

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);

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}

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protected function get_all_data() {

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return $this->get_option_manager()->get_option( $this->_id, array() );

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}

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/**

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* Load plugin data from local DB.

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* @author Vova Feldman (@svovaf)

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* @since 1.0.7

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function load() {

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$all_plugins_data = $this->get_all_data();

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$this->_data = isset( $all_plugins_data[ $this->_secondary_id ] ) ?

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$all_plugins_data[ $this->_secondary_id ] :

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array();

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}

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/**

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* @author Vova Feldman (@svovaf)

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* @since 1.0.7

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* @param string $key

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* @param mixed $value

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* @param bool $flush

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function store( $key, $value, $flush = true ) {

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if ( $this->_logger->is_on() ) {

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$this->_logger->entrance( $key . ' = ' . var_export( $value, true ) );

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}

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if ( array_key_exists( $key, $this->_data ) && $value === $this->_data[ $key ] ) {

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// No need to store data if the value wasn't changed.

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return;

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}

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$all_data = $this->get_all_data();

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$this->_data[ $key ] = $value;

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$all_data[ $this->_secondary_id ] = $this->_data;

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$options_manager = $this->get_option_manager();

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$options_manager->set_option( $this->_id, $all_data, $flush );

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}

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/**

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* @author Vova Feldman (@svovaf)

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* @since 2.0.0

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function save() {

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$this->get_option_manager()->store();

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}

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/**

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* @author Vova Feldman (@svovaf)

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* @since 1.0.7

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* @param bool $store

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* @param string[] $exceptions Set of keys to keep and not clear.

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function clear_all( $store = true, $exceptions = array() ) {

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$new_data = array();

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foreach ( $exceptions as $key ) {

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if ( isset( $this->_data[ $key ] ) ) {

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$new_data[ $key ] = $this->_data[ $key ];

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}

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}

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$this->_data = $new_data;

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if ( $store ) {

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$all_data = $this->get_all_data();

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$all_data[ $this->_secondary_id ] = $this->_data;

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$options_manager = $this->get_option_manager();

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$options_manager->set_option( $this->_id, $all_data, true );

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}

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}

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/**

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* Delete key-value storage.

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* @author Vova Feldman (@svovaf)

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* @since 1.0.9

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function delete() {

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$this->_data = array();

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$all_data = $this->get_all_data();

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unset( $all_data[ $this->_secondary_id ] );

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$options_manager = $this->get_option_manager();

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$options_manager->set_option( $this->_id, $all_data, true );

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}

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/**

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* @author Vova Feldman (@svovaf)

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* @since 1.0.7

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* @param string $key

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* @param bool $store

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function remove( $key, $store = true ) {

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if ( ! array_key_exists( $key, $this->_data ) ) {

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return;

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}

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unset( $this->_data[ $key ] );

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if ( $store ) {

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$all_data = $this->get_all_data();

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$all_data[ $this->_secondary_id ] = $this->_data;

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$options_manager = $this->get_option_manager();

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$options_manager->set_option( $this->_id, $all_data, true );

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}

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}

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/**

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* @author Vova Feldman (@svovaf)

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* @since 1.0.7

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* @param string $key

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* @param mixed $default

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* @return bool|\FS_Plugin

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function get( $key, $default = false ) {

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return array_key_exists( $key, $this->_data ) ?

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$this->_data[ $key ] :

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$default;

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}

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/**

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* @author Vova Feldman (@svovaf)

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* @since 2.0.0

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* @return string

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function get_secondary_id() {

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return $this->_secondary_id;

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}

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/* ArrayAccess + Magic Access (better for refactoring)

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-----------------------------------------------------------------------------------*/

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function __set( $k, $v ) {

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$this->store( $k, $v );

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}

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function __isset( $k ) {

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return array_key_exists( $k, $this->_data );

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}

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function __unset( $k ) {

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$this->remove( $k );

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}

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function __get( $k ) {

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return $this->get( $k, null );

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}

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#[ReturnTypeWillChange]

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function offsetSet( $k, $v ) {

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if ( is_null( $k ) ) {

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throw new Exception( 'Can\'t append value to request params.' );

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} else {

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$this->{$k} = $v;

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}

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}

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#[ReturnTypeWillChange]

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function offsetExists( $k ) {

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return array_key_exists( $k, $this->_data );

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}

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#[ReturnTypeWillChange]

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function offsetUnset( $k ) {

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unset( $this->$k );

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}

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#[ReturnTypeWillChange]

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function offsetGet( $k ) {

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return $this->get( $k, null );

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}

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/**

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* (PHP 5 >= 5.0.0)

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* Return the current element

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* @link http://php.net/manual/en/iterator.current.php

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* @return mixed Can return any type.

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#[ReturnTypeWillChange]

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public function current() {

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return current( $this->_data );

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}

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/**

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* (PHP 5 >= 5.0.0)

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* Move forward to next element

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* @link http://php.net/manual/en/iterator.next.php

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* @return void Any returned value is ignored.

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#[ReturnTypeWillChange]

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public function next() {

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next( $this->_data );

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}

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/**

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* (PHP 5 >= 5.0.0)

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* Return the key of the current element

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* @link http://php.net/manual/en/iterator.key.php

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* @return mixed scalar on success, or null on failure.

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#[ReturnTypeWillChange]

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public function key() {

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return key( $this->_data );

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}

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/**

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* (PHP 5 >= 5.0.0)

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* Checks if current position is valid

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* @link http://php.net/manual/en/iterator.valid.php

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* @return boolean The return value will be casted to boolean and then evaluated.

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* Returns true on success or false on failure.

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#[ReturnTypeWillChange]

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public function valid() {

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$key = key( $this->_data );

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return ( $key !== null && $key !== false );

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}

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/**

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* (PHP 5 >= 5.0.0)

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* Rewind the Iterator to the first element

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* @link http://php.net/manual/en/iterator.rewind.php

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* @return void Any returned value is ignored.

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#[ReturnTypeWillChange]

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public function rewind() {

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reset( $this->_data );

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}

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/**

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* (PHP 5 >= 5.1.0)

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* Count elements of an object

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* @link http://php.net/manual/en/countable.count.php

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* @return int The custom count as an integer.

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*

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*

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* The return value is cast to an integer.

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#[ReturnTypeWillChange]

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public function count() {

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return count( $this->_data );

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}

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}

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