<?php

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/**

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* WPSEO plugin file.

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*

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* @package WPSEO\Internals

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*/

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if ( ! defined( 'WPSEO_VERSION' ) ) {

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header( 'Status: 403 Forbidden' );

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header( 'HTTP/1.1 403 Forbidden' );

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exit();

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}

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if ( ! function_exists( 'yoast_breadcrumb' ) ) {

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/**

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* Template tag for breadcrumbs.

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*

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* @param string $before What to show before the breadcrumb.

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* @param string $after What to show after the breadcrumb.

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* @param bool $display Whether to display the breadcrumb (true) or return it (false).

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*

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* @return string

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*/

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function yoast_breadcrumb( $before = '', $after = '', $display = true ) {

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$breadcrumbs_enabled = current_theme_supports( 'yoast-seo-breadcrumbs' );

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if ( ! $breadcrumbs_enabled ) {

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$breadcrumbs_enabled = WPSEO_Options::get( 'breadcrumbs-enable', false );

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}

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if ( $breadcrumbs_enabled ) {

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return WPSEO_Breadcrumbs::breadcrumb( $before, $after, $display );

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}

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}

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}

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if ( ! function_exists( 'yoast_get_primary_term_id' ) ) {

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/**

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* Get the primary term ID.

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*

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* @param string $taxonomy Optional. The taxonomy to get the primary term ID for. Defaults to category.

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* @param int|WP_Post|null $post Optional. Post to get the primary term ID for.

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*

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* @return bool|int

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*/

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function yoast_get_primary_term_id( $taxonomy = 'category', $post = null ) {

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$post = get_post( $post );

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$primary_term = new WPSEO_Primary_Term( $taxonomy, $post->ID );

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return $primary_term->get_primary_term();

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}

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}

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if ( ! function_exists( 'yoast_get_primary_term' ) ) {

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/**

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* Get the primary term name.

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*

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* @param string $taxonomy Optional. The taxonomy to get the primary term for. Defaults to category.

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* @param int|WP_Post|null $post Optional. Post to get the primary term for.

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*

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* @return string Name of the primary term.

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*/

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function yoast_get_primary_term( $taxonomy = 'category', $post = null ) {

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$primary_term_id = yoast_get_primary_term_id( $taxonomy, $post );

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$term = get_term( $primary_term_id );

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if ( ! is_wp_error( $term ) && ! empty( $term ) ) {

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return $term->name;

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}

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return '';

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}

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}

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/**

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* Replace `%%variable_placeholders%%` with their real value based on the current requested page/post/cpt.

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*

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* @param string $text The string to replace the variables in.

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* @param object $args The object some of the replacement values might come from,

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* could be a post, taxonomy or term.

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* @param array $omit Variables that should not be replaced by this function.

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*

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* @return string

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*/

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function wpseo_replace_vars( $text, $args, $omit = [] ) {

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$replacer = new WPSEO_Replace_Vars();

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return $replacer->replace( $text, $args, $omit );

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}

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/**

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* Register a new variable replacement.

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*

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* This function is for use by other plugins/themes to easily add their own additional variables to replace.

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* This function should be called from a function on the 'wpseo_register_extra_replacements' action hook.

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* The use of this function is preferred over the older 'wpseo_replacements' filter as a way to add new replacements.

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* The 'wpseo_replacements' filter should still be used to adjust standard WPSEO replacement values.

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* The function can not be used to replace standard WPSEO replacement value functions and will thrown a warning

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* if you accidently try.

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* To avoid conflicts with variables registered by WPSEO and other themes/plugins, try and make the

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* name of your variable unique. Variable names also can not start with "%%cf_" or "%%ct_" as these are reserved

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* for the standard WPSEO variable variables 'cf_<custom-field-name>', 'ct_<custom-tax-name>' and

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* 'ct_desc_<custom-tax-name>'.

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* The replacement function will be passed the undelimited name (i.e. stripped of the %%) of the variable

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* to replace in case you need it.

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*

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* Example code:

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* <code>

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* <?php

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* function retrieve_var1_replacement( $var1 ) {

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* return 'your replacement value';

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* }

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*

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* function register_my_plugin_extra_replacements() {

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* wpseo_register_var_replacement( '%%myvar1%%', 'retrieve_var1_replacement', 'advanced', 'this is a help text for myvar1' );

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* wpseo_register_var_replacement( 'myvar2', array( 'class', 'method_name' ), 'basic', 'this is a help text for myvar2' );

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* }

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* add_action( 'wpseo_register_extra_replacements', 'register_my_plugin_extra_replacements' );

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* ?>

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* </code>

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*

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* @since 1.5.4

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*

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* @param string $replacevar_name The name of the variable to replace, i.e. '%%var%%'.

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* Note: the surrounding %% are optional, name can only contain [A-Za-z0-9_-].

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* @param mixed $replace_function Function or method to call to retrieve the replacement value for the variable.

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* Uses the same format as add_filter/add_action function parameter and

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* should *return* the replacement value. DON'T echo it.

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* @param string $type Type of variable: 'basic' or 'advanced', defaults to 'advanced'.

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* @param string $help_text Help text to be added to the help tab for this variable.

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*

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* @return bool Whether the replacement function was successfully registered.

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*/

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function wpseo_register_var_replacement( $replacevar_name, $replace_function, $type = 'advanced', $help_text = '' ) {

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return WPSEO_Replace_Vars::register_replacement( $replacevar_name, $replace_function, $type, $help_text );

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}

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/**

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* WPML plugin support: Set titles for custom types / taxonomies as translatable.

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*

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* It adds new keys to a wpml-config.xml file for a custom post type title, metadesc,

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* title-ptarchive and metadesc-ptarchive fields translation.

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* Documentation: http://wpml.org/documentation/support/language-configuration-files/

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*

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* @global $sitepress

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*

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* @param array $config WPML configuration data to filter.

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*

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* @return array

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*/

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function wpseo_wpml_config( $config ) {

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global $sitepress;

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if ( ( is_array( $config ) && isset( $config['wpml-config']['admin-texts']['key'] ) ) && ( is_array( $config['wpml-config']['admin-texts']['key'] ) && $config['wpml-config']['admin-texts']['key'] !== [] ) ) {

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$admin_texts = $config['wpml-config']['admin-texts']['key'];

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foreach ( $admin_texts as $k => $val ) {

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if ( $val['attr']['name'] === 'wpseo_titles' ) {

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$translate_cp = array_keys( $sitepress->get_translatable_documents() );

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if ( is_array( $translate_cp ) && $translate_cp !== [] ) {

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foreach ( $translate_cp as $post_type ) {

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$admin_texts[ $k ]['key'][]['attr']['name'] = 'title-' . $post_type;

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$admin_texts[ $k ]['key'][]['attr']['name'] = 'metadesc-' . $post_type;

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$admin_texts[ $k ]['key'][]['attr']['name'] = 'title-ptarchive-' . $post_type;

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$admin_texts[ $k ]['key'][]['attr']['name'] = 'metadesc-ptarchive-' . $post_type;

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$translate_tax = $sitepress->get_translatable_taxonomies( false, $post_type );

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if ( is_array( $translate_tax ) && $translate_tax !== [] ) {

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foreach ( $translate_tax as $taxonomy ) {

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$admin_texts[ $k ]['key'][]['attr']['name'] = 'title-tax-' . $taxonomy;

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$admin_texts[ $k ]['key'][]['attr']['name'] = 'metadesc-tax-' . $taxonomy;

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}

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}

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}

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}

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break;

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}

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}

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$config['wpml-config']['admin-texts']['key'] = $admin_texts;

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}

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return $config;

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}

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add_filter( 'icl_wpml_config_array', 'wpseo_wpml_config' );

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if ( ! function_exists( 'ctype_digit' ) ) {

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/**

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* Emulate PHP native ctype_digit() function for when the ctype extension would be disabled *sigh*.

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* Only emulates the behaviour for when the input is a string, does not handle integer input as ascii value.

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*

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* @param string $text String input to validate.

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*

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* @return bool

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*/

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function ctype_digit( $text ) {

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$return = false;

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if ( ( is_string( $text ) && $text !== '' ) && preg_match( '`^\d+$`', $text ) === 1 ) {

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$return = true;

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}

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return $return;

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}

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}

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/**

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* Makes sure the taxonomy meta is updated when a taxonomy term is split.

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*

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* @link https://make.wordpress.org/core/2015/02/16/taxonomy-term-splitting-in-4-2-a-developer-guide/ Article explaining the taxonomy term splitting in WP 4.2.

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*

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* @param string $old_term_id Old term id of the taxonomy term that was splitted.

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* @param string $new_term_id New term id of the taxonomy term that was splitted.

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* @param string $term_taxonomy_id Term taxonomy id for the taxonomy that was affected.

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* @param string $taxonomy The taxonomy that the taxonomy term was splitted for.

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*

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* @return void

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*/

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function wpseo_split_shared_term( $old_term_id, $new_term_id, $term_taxonomy_id, $taxonomy ) {

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$tax_meta = get_option( 'wpseo_taxonomy_meta', [] );

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if ( ! empty( $tax_meta[ $taxonomy ][ $old_term_id ] ) ) {

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$tax_meta[ $taxonomy ][ $new_term_id ] = $tax_meta[ $taxonomy ][ $old_term_id ];

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unset( $tax_meta[ $taxonomy ][ $old_term_id ] );

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update_option( 'wpseo_taxonomy_meta', $tax_meta );

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}

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}

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add_action( 'split_shared_term', 'wpseo_split_shared_term', 10, 4 );

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/**

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* Get all WPSEO related capabilities.

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*

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* @since 8.3

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* @return array

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*/

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function wpseo_get_capabilities() {

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if ( ! did_action( 'wpseo_register_capabilities' ) ) {

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do_action( 'wpseo_register_capabilities' );

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}

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return WPSEO_Capability_Manager_Factory::get()->get_capabilities();

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}

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