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<?php

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/**

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* WPSEO plugin file.

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* @package WPSEO\Internals\Options

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/**

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* Option: wpseo_taxonomy_meta.

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class WPSEO_Taxonomy_Meta extends WPSEO_Option {

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/**

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* Option name.

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* @var string

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public $option_name = 'wpseo_taxonomy_meta';

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/**

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* Whether to include the option in the return for WPSEO_Options::get_all().

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* @var bool

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public $include_in_all = false;

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/**

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* Array of defaults for the option.

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* Shouldn't be requested directly, use $this->get_defaults();

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* {@internal Important: in contrast to most defaults, the below array format is

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* very bare. The real option is in the format [taxonomy_name][term_id][...]

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* where [...] is any of the $defaults_per_term options shown below.

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* This is of course taken into account in the below methods.}}

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* @var array

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protected $defaults = [];

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/**

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* Option name - same as $option_name property, but now also available to static methods.

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* @var string

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public static $name;

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/**

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* Array of defaults for individual taxonomy meta entries.

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* @var array

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public static $defaults_per_term = [

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'wpseo_title' => '',

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'wpseo_desc' => '',

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'wpseo_canonical' => '',

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'wpseo_bctitle' => '',

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'wpseo_noindex' => 'default',

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'wpseo_focuskw' => '',

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'wpseo_linkdex' => '',

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'wpseo_content_score' => '',

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'wpseo_inclusive_language_score' => '',

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'wpseo_focuskeywords' => '[]',

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'wpseo_keywordsynonyms' => '[]',

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'wpseo_is_cornerstone' => '0',

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// Social fields.

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'wpseo_opengraph-title' => '',

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'wpseo_opengraph-description' => '',

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'wpseo_opengraph-image' => '',

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'wpseo_opengraph-image-id' => '',

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'wpseo_twitter-title' => '',

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'wpseo_twitter-description' => '',

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'wpseo_twitter-image' => '',

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'wpseo_twitter-image-id' => '',

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];

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/**

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* Available index options.

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* Used for form generation and input validation.

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* {@internal Labels (translation) added on admin_init via WPSEO_Taxonomy::translate_meta_options().}}

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* @var array

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public static $no_index_options = [

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'default' => '',

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'index' => '',

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'noindex' => '',

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];

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/**

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* Add the actions and filters for the option.

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* @todo [JRF => testers] Check if the extra actions below would run into problems if an option

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* is updated early on and if so, change the call to schedule these for a later action on add/update

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* instead of running them straight away.

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protected function __construct() {

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parent::__construct();

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self::$name = $this->option_name;

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}

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/**

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* Get the singleton instance of this class.

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* @return object

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public static function get_instance() {

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if ( ! ( self::$instance instanceof self ) ) {

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self::$instance = new self();

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self::$name = self::$instance->option_name;

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}

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return self::$instance;

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}

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/**

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* Add extra default options received from a filter.

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* @return void

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public function enrich_defaults() {

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$extra_defaults_per_term = apply_filters( 'wpseo_add_extra_taxmeta_term_defaults', [] );

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if ( is_array( $extra_defaults_per_term ) ) {

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self::$defaults_per_term = array_merge( $extra_defaults_per_term, self::$defaults_per_term );

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}

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}

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/**

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* Validate the option.

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* @param array $dirty New value for the option.

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* @param array $clean Clean value for the option, normally the defaults.

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* @param array $old Old value of the option.

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* @return array Validated clean value for the option to be saved to the database.

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protected function validate_option( $dirty, $clean, $old ) {

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* Prevent complete validation (which can be expensive when there are lots of terms)

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* if only one item has changed and has already been validated.

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if ( isset( $dirty['wpseo_already_validated'] ) && $dirty['wpseo_already_validated'] === true ) {

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unset( $dirty['wpseo_already_validated'] );

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return $dirty;

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}

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foreach ( $dirty as $taxonomy => $terms ) {

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/* Don't validate taxonomy - may not be registered yet and we don't want to remove valid ones. */

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

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foreach ( $terms as $term_id => $meta_data ) {

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/* Only validate term if the taxonomy exists. */

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if ( taxonomy_exists( $taxonomy ) && get_term_by( 'id', $term_id, $taxonomy ) === false ) {

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/* Is this term id a special case ? */

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if ( has_filter( 'wpseo_tax_meta_special_term_id_validation_' . $term_id ) !== false ) {

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$clean[ $taxonomy ][ $term_id ] = apply_filters( 'wpseo_tax_meta_special_term_id_validation_' . $term_id, $meta_data, $taxonomy, $term_id );

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}

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continue;

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}

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

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/* Validate meta data. */

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$old_meta = self::get_term_meta( $term_id, $taxonomy );

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$meta_data = self::validate_term_meta_data( $meta_data, $old_meta );

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if ( $meta_data !== [] ) {

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$clean[ $taxonomy ][ $term_id ] = $meta_data;

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}

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}

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// Deal with special cases (for when taxonomy doesn't exist yet).

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if ( ! isset( $clean[ $taxonomy ][ $term_id ] ) && has_filter( 'wpseo_tax_meta_special_term_id_validation_' . $term_id ) !== false ) {

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$clean[ $taxonomy ][ $term_id ] = apply_filters( 'wpseo_tax_meta_special_term_id_validation_' . $term_id, $meta_data, $taxonomy, $term_id );

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}

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}

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}

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}

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return $clean;

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}

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/**

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* Validate the meta data for one individual term and removes default values (no need to save those).

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* @param array $meta_data New values.

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* @param array $old_meta The original values.

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* @return array Validated and filtered value.

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public static function validate_term_meta_data( $meta_data, $old_meta ) {

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$clean = self::$defaults_per_term;

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$meta_data = array_map( [ 'WPSEO_Utils', 'trim_recursive' ], $meta_data );

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if ( ! is_array( $meta_data ) || $meta_data === [] ) {

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return $clean;

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}

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foreach ( $clean as $key => $value ) {

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switch ( $key ) {

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case 'wpseo_noindex':

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

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if ( isset( self::$no_index_options[ $meta_data[ $key ] ] ) ) {

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$clean[ $key ] = $meta_data[ $key ];

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}

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}

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elseif ( isset( $old_meta[ $key ] ) ) {

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// Retain old value if field currently not in use.

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$clean[ $key ] = $old_meta[ $key ];

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}

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break;

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case 'wpseo_canonical':

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if ( isset( $meta_data[ $key ] ) && $meta_data[ $key ] !== '' ) {

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$url = WPSEO_Utils::sanitize_url( $meta_data[ $key ] );

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if ( $url !== '' ) {

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$clean[ $key ] = $url;

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}

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unset( $url );

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}

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break;

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case 'wpseo_bctitle':

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

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$clean[ $key ] = WPSEO_Utils::sanitize_text_field( $meta_data[ $key ] );

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}

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elseif ( isset( $old_meta[ $key ] ) ) {

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// Retain old value if field currently not in use.

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$clean[ $key ] = $old_meta[ $key ];

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}

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break;

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case 'wpseo_keywordsynonyms':

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if ( isset( $meta_data[ $key ] ) && is_string( $meta_data[ $key ] ) ) {

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// The data is stringified JSON. Use `json_decode` and `json_encode` around the sanitation.

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$input = json_decode( $meta_data[ $key ], true );

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$sanitized = array_map( [ 'WPSEO_Utils', 'sanitize_text_field' ], $input );

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$clean[ $key ] = WPSEO_Utils::format_json_encode( $sanitized );

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}

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elseif ( isset( $old_meta[ $key ] ) ) {

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// Retain old value if field currently not in use.

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$clean[ $key ] = $old_meta[ $key ];

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}

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break;

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case 'wpseo_focuskeywords':

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if ( isset( $meta_data[ $key ] ) && is_string( $meta_data[ $key ] ) ) {

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// The data is stringified JSON. Use `json_decode` and `json_encode` around the sanitation.

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$input = json_decode( $meta_data[ $key ], true );

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// This data has two known keys: `keyword` and `score`.

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$sanitized = [];

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foreach ( $input as $entry ) {

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$sanitized[] = [

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'keyword' => WPSEO_Utils::sanitize_text_field( $entry['keyword'] ),

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'score' => WPSEO_Utils::sanitize_text_field( $entry['score'] ),

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];

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}

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$clean[ $key ] = WPSEO_Utils::format_json_encode( $sanitized );

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}

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elseif ( isset( $old_meta[ $key ] ) ) {

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// Retain old value if field currently not in use.

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$clean[ $key ] = $old_meta[ $key ];

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}

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break;

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case 'wpseo_focuskw':

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case 'wpseo_title':

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case 'wpseo_desc':

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case 'wpseo_linkdex':

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default:

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if ( isset( $meta_data[ $key ] ) && is_string( $meta_data[ $key ] ) ) {

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$clean[ $key ] = WPSEO_Utils::sanitize_text_field( $meta_data[ $key ] );

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}

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if ( $key === 'wpseo_focuskw' ) {

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$search = [

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'<',

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'>',

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'&#96',

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'<',

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'>',

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'`',

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];

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$clean[ $key ] = str_replace( $search, '', $clean[ $key ] );

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}

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break;

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}

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$clean[ $key ] = apply_filters( 'wpseo_sanitize_tax_meta_' . $key, $clean[ $key ], ( $meta_data[ $key ] ?? null ), ( $old_meta[ $key ] ?? null ) );

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}

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// Only save the non-default values.

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return array_diff_assoc( $clean, self::$defaults_per_term );

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}

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[301] Fix | Delete

/**

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* Clean a given option value.

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* - Convert old option values to new

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* - Fixes strings which were escaped (should have been sanitized - escaping is for output)

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* @param array $option_value Old (not merged with defaults or filtered) option value to

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* clean according to the rules for this option.

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* @param string|null $current_version Optional. Version from which to upgrade, if not set,

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* version specific upgrades will be disregarded.

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* @param array|null $all_old_option_values Optional. Only used when importing old options to have

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* access to the real old values, in contrast to the saved ones.

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* @return array Cleaned option.

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protected function clean_option( $option_value, $current_version = null, $all_old_option_values = null ) {

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/* Clean up old values and remove empty arrays. */

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

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foreach ( $option_value as $taxonomy => $terms ) {

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[322] Fix | Delete

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

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foreach ( $terms as $term_id => $meta_data ) {

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if ( ! is_array( $meta_data ) || $meta_data === [] ) {

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// Remove empty term arrays.

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unset( $option_value[ $taxonomy ][ $term_id ] );

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}

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else {

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foreach ( $meta_data as $key => $value ) {

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switch ( $key ) {

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case 'noindex':

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if ( $value === 'on' ) {

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// Convert 'on' to 'noindex'.

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$option_value[ $taxonomy ][ $term_id ][ $key ] = 'noindex';

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}

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break;

[339] Fix | Delete

[340] Fix | Delete

case 'canonical':

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case 'wpseo_bctitle':

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case 'wpseo_title':

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case 'wpseo_desc':

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case 'wpseo_linkdex':

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// @todo [JRF => whomever] Needs checking, I don't have example data [JRF].

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if ( $value !== '' ) {

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// Fix incorrectly saved (encoded) canonical urls and texts.

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$option_value[ $taxonomy ][ $term_id ][ $key ] = wp_specialchars_decode( stripslashes( $value ), ENT_QUOTES );

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}

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break;

[351] Fix | Delete

[352] Fix | Delete

default:

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// @todo [JRF => whomever] Needs checking, I don't have example data [JRF].

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if ( $value !== '' ) {

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// Fix incorrectly saved (escaped) text strings.

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$option_value[ $taxonomy ][ $term_id ][ $key ] = wp_specialchars_decode( $value, ENT_QUOTES );

[357] Fix | Delete

}

[358] Fix | Delete

break;

[359] Fix | Delete

}

[360] Fix | Delete

}

[361] Fix | Delete

}

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}

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}

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else {

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// Remove empty taxonomy arrays.

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unset( $option_value[ $taxonomy ] );

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}

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}

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}

[370] Fix | Delete

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return $option_value;

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}

[373] Fix | Delete

[374] Fix | Delete

/**

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* Retrieve a taxonomy term's meta value(s).

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* @param mixed $term Term to get the meta value for

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* either (string) term name, (int) term id or (object) term.

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* @param string $taxonomy Name of the taxonomy to which the term is attached.

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* @param string|null $meta Optional. Meta value to get (without prefix).

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[382] Fix | Delete

* @return mixed Value for the $meta if one is given, might be the default.

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* If no meta is given, an array of all the meta data for the term.

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* False if the term does not exist or the $meta provided is invalid.

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public static function get_term_meta( $term, $taxonomy, $meta = null ) {

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/* Figure out the term id. */

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if ( is_int( $term ) ) {

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$term = get_term_by( 'id', $term, $taxonomy );

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}

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elseif ( is_string( $term ) ) {

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$term = get_term_by( 'slug', $term, $taxonomy );

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}

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if ( is_object( $term ) && isset( $term->term_id ) ) {

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$term_id = $term->term_id;

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}

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else {

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return false;

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}

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$tax_meta = self::get_term_tax_meta( $term_id, $taxonomy );

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[404] Fix | Delete

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* Either return the complete array or a single value from it or false if the value does not exist

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* (shouldn't happen after merge with defaults, indicates typo in request).

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if ( ! isset( $meta ) ) {

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return $tax_meta;

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}

[411] Fix | Delete

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if ( isset( $tax_meta[ 'wpseo_' . $meta ] ) ) {

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return $tax_meta[ 'wpseo_' . $meta ];

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}

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return false;

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}

[418] Fix | Delete

[419] Fix | Delete

/**

[420] Fix | Delete

* Get the current queried object and return the meta value.

[421] Fix | Delete

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* @param string $meta The meta field that is needed.

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[424] Fix | Delete

* @return mixed

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[426] Fix | Delete

public static function get_meta_without_term( $meta ) {

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$term = $GLOBALS['wp_query']->get_queried_object();

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if ( ! $term || empty( $term->taxonomy ) ) {

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return false;

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}

[431] Fix | Delete

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return self::get_term_meta( $term, $term->taxonomy, $meta );

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}

[434] Fix | Delete

[435] Fix | Delete

/**

[436] Fix | Delete

* Saving the values for the given term_id.

[437] Fix | Delete

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* @param int $term_id ID of the term to save data for.

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* @param string $taxonomy The taxonomy the term belongs to.

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* @param array $meta_values The values that will be saved.

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[442] Fix | Delete

* @return void

[443] Fix | Delete

[444] Fix | Delete

public static function set_values( $term_id, $taxonomy, array $meta_values ) {

[445] Fix | Delete

/* Validate the post values */

[446] Fix | Delete

$old = self::get_term_meta( $term_id, $taxonomy );

[447] Fix | Delete

$clean = self::validate_term_meta_data( $meta_values, $old );

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[449] Fix | Delete

self::save_clean_values( $term_id, $taxonomy, $clean );

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}

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/**

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* Setting a single value to the term meta.

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* @param int $term_id ID of the term to save data for.

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* @param string $taxonomy The taxonomy the term belongs to.

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* @param string $meta_key The target meta key to store the value in.

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* @param string $meta_value The value of the target meta key.

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* @return void

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public static function set_value( $term_id, $taxonomy, $meta_key, $meta_value ) {

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if ( substr( strtolower( $meta_key ), 0, 6 ) !== 'wpseo_' ) {

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$meta_key = 'wpseo_' . $meta_key;

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}

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self::set_values( $term_id, $taxonomy, [ $meta_key => $meta_value ] );

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}

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/**

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* Find the keyword usages in the metas for the taxonomies/terms.

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* @param string $keyword The keyword to look for.

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* @param string $current_term_id The current term id.

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* @param string $current_taxonomy The current taxonomy name.

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* @return array

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public static function get_keyword_usage( $keyword, $current_term_id, $current_taxonomy ) {

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$tax_meta = self::get_tax_meta();

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$found = [];

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// @todo Check for terms of all taxonomies, not only the current taxonomy.

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foreach ( $tax_meta as $taxonomy_name => $terms ) {

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foreach ( $terms as $term_id => $meta_values ) {

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$is_current = ( $current_taxonomy === $taxonomy_name && (string) $current_term_id === (string) $term_id );

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if ( ! $is_current && ! empty( $meta_values['wpseo_focuskw'] ) && $meta_values['wpseo_focuskw'] === $keyword ) {

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$found[] = $term_id;

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}

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}

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}

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return [ $keyword => $found ];

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}

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/**

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* Saving the values for the given term_id.

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