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<?php

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if ( ! defined( 'ICL_DISABLE_CACHE' ) ) {

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define( 'ICL_DISABLE_CACHE', false );

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}

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// phpcs:disable PEAR.NamingConventions.ValidClassName.Invalid

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// phpcs:disable PEAR.NamingConventions.ValidClassName.StartWithCapital

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/**

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* Class icl_cache

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class icl_cache {

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/** @var array */

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protected $data;

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/** @var string */

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protected $name;

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/** @var bool */

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protected $cache_to_option;

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/** @var bool */

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protected $cache_needs_saving;

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public function __construct( $name = '', $cache_to_option = false ) {

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$this->data = [];

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$this->name = $name;

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$this->cache_to_option = $cache_to_option;

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$this->cache_needs_saving = false;

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$this->init();

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}

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public function init() {

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if ( $this->cache_to_option ) {

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$this->data = icl_cache_get( $this->name . '_cache_class' );

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if ( false === $this->data ) {

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$this->data = [];

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}

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add_action( 'shutdown', [ $this, 'save_cache_if_required' ] );

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}

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}

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public function save_cache_if_required() {

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if ( $this->cache_needs_saving ) {

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icl_cache_set( $this->name . '_cache_class', $this->data );

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$this->cache_needs_saving = false;

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}

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}

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public function get( $key ) {

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if ( ICL_DISABLE_CACHE ) {

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return null;

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}

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return isset( $this->data[ $key ] ) ? $this->data[ $key ] : false;

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}

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public function has_key( $key ) {

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if ( ICL_DISABLE_CACHE ) {

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return false;

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}

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return array_key_exists( $key, (array) $this->data );

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}

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public function set( $key, $value ) {

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if ( ICL_DISABLE_CACHE ) {

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return;

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}

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if ( $this->cache_to_option ) {

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$old_value = null;

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

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$old_value = $this->data[ $key ];

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}

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if ( $old_value !== $value ) {

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

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$this->cache_needs_saving = true;

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}

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} else {

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

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}

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}

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public function clear() {

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$this->data = array();

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if ( $this->cache_to_option ) {

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icl_cache_clear( $this->name . '_cache_class' );

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}

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}

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}

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if ( ! function_exists( 'icl_disable_cache' ) ) {

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function icl_disable_cache() {

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return defined( 'ICL_DISABLE_CACHE' ) && ICL_DISABLE_CACHE;

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}

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}

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if ( ! function_exists( 'icl_cache_get' ) ) {

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function icl_cache_get( $key ) {

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$result = false;

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if ( ! icl_disable_cache() ) {

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$icl_cache = get_option( '_icl_cache' );

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$result = isset( $icl_cache[ $key ] ) ? $icl_cache[ $key ] : false;

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}

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return $result;

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}

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}

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if ( ! function_exists( 'icl_cache_set' ) ) {

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function icl_cache_set( $key, $value = null ) {

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global $switched;

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if ( empty( $switched ) && ! icl_disable_cache() ) {

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$icl_cache = get_option( '_icl_cache' );

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if ( false === $icl_cache ) {

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delete_option( '_icl_cache' );

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}

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if ( ! isset( $icl_cache[ $key ] ) || $icl_cache[ $key ] !== $value ) {

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if ( ! is_null( $value ) ) {

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$icl_cache[ $key ] = $value;

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} elseif ( isset( $icl_cache[ $key ] ) ) {

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unset( $icl_cache[ $key ] );

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}

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update_option( '_icl_cache', $icl_cache, 'no' );

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}

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}

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}

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}

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if ( ! function_exists( 'icl_cache_clear' ) ) {

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function icl_cache_clear( $key = false, $key_as_prefix = false ) {

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if ( ! icl_disable_cache() ) {

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/**

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* @var WPML_Term_Translation $wpml_term_translations

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* @var WPML_Post_Translation $wpml_post_translations

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global $wpml_term_translations, $wpml_post_translations;

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$wpml_term_translations->reload();

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$wpml_post_translations->reload();

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if ( false === $key ) {

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delete_option( '_icl_cache' );

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} else {

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/** @var array $icl_cache */

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$icl_cache = get_option( '_icl_cache' );

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if ( is_array( $icl_cache ) ) {

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if ( isset( $icl_cache[ $key ] ) ) {

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unset( $icl_cache[ $key ] );

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}

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if ( $key_as_prefix ) {

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$cache_keys = array_keys( $icl_cache );

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foreach ( $cache_keys as $cache_key ) {

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if ( strpos( $cache_key, $key ) === 0 ) {

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unset( $icl_cache[ $cache_key ] );

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}

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}

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}

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// Special cache of 'per language' - clear different statuses.

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if ( false !== strpos( $key, '_per_language' ) ) {

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foreach ( $icl_cache as $k => $v ) {

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if ( false !== strpos( $k, $key . '#' ) ) {

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unset( $icl_cache[ $k ] );

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}

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}

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}

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update_option( '_icl_cache', $icl_cache, 'no' );

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}

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}

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}

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do_action( 'wpml_cache_clear' );

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}

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}

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function w3tc_translate_cache_key_filter( $key ) {

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global $sitepress;

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return $sitepress->get_current_language() . $key;

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}

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