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<?php
/**
* WPSEO plugin file.
*
* @package WPSEO\Internals
*/
if ( ! defined( 'WPSEO_VERSION' ) ) {
header( 'Status: 403 Forbidden' );
header( 'HTTP/1.1 403 Forbidden' );
exit();
}
if ( ! function_exists( 'initialize_wpseo_front' ) ) {
/**
* Wraps frontend class.
*/
function initialize_wpseo_front() {
WPSEO_Frontend::get_instance();
}
}
if ( ! function_exists( 'yoast_breadcrumb' ) ) {
/**
* Template tag for breadcrumbs.
*
* @param string $before What to show before the breadcrumb.
* @param string $after What to show after the breadcrumb.
* @param bool $display Whether to display the breadcrumb (true) or return it (false).
*
* @return string
*/
function yoast_breadcrumb( $before = '', $after = '', $display = true ) {
$breadcrumbs_enabled = current_theme_supports( 'yoast-seo-breadcrumbs' );
if ( ! $breadcrumbs_enabled ) {
$breadcrumbs_enabled = WPSEO_Options::get( 'breadcrumbs-enable', false );
}
if ( $breadcrumbs_enabled ) {
return WPSEO_Breadcrumbs::breadcrumb( $before, $after, $display );
}
}
}
if ( ! function_exists( 'yoast_get_primary_term_id' ) ) {
/**
* Get the primary term ID.
*
* @param string $taxonomy Optional. The taxonomy to get the primary term ID for. Defaults to category.
* @param null|int|WP_Post $post Optional. Post to get the primary term ID for.
*
* @return bool|int
*/
function yoast_get_primary_term_id( $taxonomy = 'category', $post = null ) {
$post = get_post( $post );
$primary_term = new WPSEO_Primary_Term( $taxonomy, $post->ID );
return $primary_term->get_primary_term();
}
}
if ( ! function_exists( 'yoast_get_primary_term' ) ) {
/**
* Get the primary term name.
*
* @param string $taxonomy Optional. The taxonomy to get the primary term for. Defaults to category.
* @param null|int|WP_Post $post Optional. Post to get the primary term for.
*
* @return string Name of the primary term.
*/
function yoast_get_primary_term( $taxonomy = 'category', $post = null ) {
$primary_term_id = yoast_get_primary_term_id( $taxonomy, $post );
$term = get_term( $primary_term_id );
if ( ! is_wp_error( $term ) && ! empty( $term ) ) {
return $term->name;
}
return '';
}
}
/**
* Replace `%%variable_placeholders%%` with their real value based on the current requested page/post/cpt.
*
* @param string $string The string to replace the variables in.
* @param object $args The object some of the replacement values might come from,
* could be a post, taxonomy or term.
* @param array $omit Variables that should not be replaced by this function.
*
* @return string
*/
function wpseo_replace_vars( $string, $args, $omit = array() ) {
$replacer = new WPSEO_Replace_Vars();
return $replacer->replace( $string, $args, $omit );
}
/**
* Register a new variable replacement.
*
* This function is for use by other plugins/themes to easily add their own additional variables to replace.
* This function should be called from a function on the 'wpseo_register_extra_replacements' action hook.
* The use of this function is preferred over the older 'wpseo_replacements' filter as a way to add new replacements.
* The 'wpseo_replacements' filter should still be used to adjust standard WPSEO replacement values.
* The function can not be used to replace standard WPSEO replacement value functions and will thrown a warning
* if you accidently try.
* To avoid conflicts with variables registered by WPSEO and other themes/plugins, try and make the
* name of your variable unique. Variable names also can not start with "%%cf_" or "%%ct_" as these are reserved
* for the standard WPSEO variable variables 'cf_<custom-field-name>', 'ct_<custom-tax-name>' and
* 'ct_desc_<custom-tax-name>'.
* The replacement function will be passed the undelimited name (i.e. stripped of the %%) of the variable
* to replace in case you need it.
*
* Example code:
* <code>
* <?php
* function retrieve_var1_replacement( $var1 ) {
* return 'your replacement value';
* }
*
* function register_my_plugin_extra_replacements() {
* wpseo_register_var_replacement( '%%myvar1%%', 'retrieve_var1_replacement', 'advanced', 'this is a help text for myvar1' );
* wpseo_register_var_replacement( 'myvar2', array( 'class', 'method_name' ), 'basic', 'this is a help text for myvar2' );
* }
* add_action( 'wpseo_register_extra_replacements', 'register_my_plugin_extra_replacements' );
* ?>
* </code>
*
* @since 1.5.4
*
* @param string $var The name of the variable to replace, i.e. '%%var%%'.
* Note: the surrounding %% are optional, name can only contain [A-Za-z0-9_-].
* @param mixed $replace_function Function or method to call to retrieve the replacement value for the variable.
* Uses the same format as add_filter/add_action function parameter and
* should *return* the replacement value. DON'T echo it.
* @param string $type Type of variable: 'basic' or 'advanced', defaults to 'advanced'.
* @param string $help_text Help text to be added to the help tab for this variable.
*
* @return bool Whether the replacement function was successfully registered.
*/
function wpseo_register_var_replacement( $var, $replace_function, $type = 'advanced', $help_text = '' ) {
return WPSEO_Replace_Vars::register_replacement( $var, $replace_function, $type, $help_text );
}
/**
* WPML plugin support: Set titles for custom types / taxonomies as translatable.
*
* It adds new keys to a wpml-config.xml file for a custom post type title, metadesc,
* title-ptarchive and metadesc-ptarchive fields translation.
* Documentation: http://wpml.org/documentation/support/language-configuration-files/
*
* @global $sitepress
*
* @param array $config WPML configuration data to filter.
*
* @return array
*/
function wpseo_wpml_config( $config ) {
global $sitepress;
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'] !== array() ) ) {
$admin_texts = $config['wpml-config']['admin-texts']['key'];
foreach ( $admin_texts as $k => $val ) {
if ( $val['attr']['name'] === 'wpseo_titles' ) {
$translate_cp = array_keys( $sitepress->get_translatable_documents() );
if ( is_array( $translate_cp ) && $translate_cp !== array() ) {
foreach ( $translate_cp as $post_type ) {
$admin_texts[ $k ]['key'][]['attr']['name'] = 'title-' . $post_type;
$admin_texts[ $k ]['key'][]['attr']['name'] = 'metadesc-' . $post_type;
$admin_texts[ $k ]['key'][]['attr']['name'] = 'title-ptarchive-' . $post_type;
$admin_texts[ $k ]['key'][]['attr']['name'] = 'metadesc-ptarchive-' . $post_type;
$translate_tax = $sitepress->get_translatable_taxonomies( false, $post_type );
if ( is_array( $translate_tax ) && $translate_tax !== array() ) {
foreach ( $translate_tax as $taxonomy ) {
$admin_texts[ $k ]['key'][]['attr']['name'] = 'title-tax-' . $taxonomy;
$admin_texts[ $k ]['key'][]['attr']['name'] = 'metadesc-tax-' . $taxonomy;
}
}
}
}
break;
}
}
$config['wpml-config']['admin-texts']['key'] = $admin_texts;
}
return $config;
}
add_filter( 'icl_wpml_config_array', 'wpseo_wpml_config' );
/**
* Yoast SEO breadcrumb shortcode.
* [wpseo_breadcrumb]
*
* @return string
*/
function wpseo_shortcode_yoast_breadcrumb() {
return yoast_breadcrumb( '', '', false );
}
add_shortcode( 'wpseo_breadcrumb', 'wpseo_shortcode_yoast_breadcrumb' );
if ( ! extension_loaded( 'ctype' ) || ! function_exists( 'ctype_digit' ) ) {
/**
* Emulate PHP native ctype_digit() function for when the ctype extension would be disabled *sigh*.
* Only emulates the behaviour for when the input is a string, does not handle integer input as ascii value.
*
* @param string $string String input to validate.
*
* @return bool
*/
function ctype_digit( $string ) {
$return = false;
if ( ( is_string( $string ) && $string !== '' ) && preg_match( '`^\d+$`', $string ) === 1 ) {
$return = true;
}
return $return;
}
}
/**
* Makes sure the taxonomy meta is updated when a taxonomy term is split.
*
* @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.
*
* @param string $old_term_id Old term id of the taxonomy term that was splitted.
* @param string $new_term_id New term id of the taxonomy term that was splitted.
* @param string $term_taxonomy_id Term taxonomy id for the taxonomy that was affected.
* @param string $taxonomy The taxonomy that the taxonomy term was splitted for.
*/
function wpseo_split_shared_term( $old_term_id, $new_term_id, $term_taxonomy_id, $taxonomy ) {
$tax_meta = get_option( 'wpseo_taxonomy_meta', array() );
if ( ! empty( $tax_meta[ $taxonomy ][ $old_term_id ] ) ) {
$tax_meta[ $taxonomy ][ $new_term_id ] = $tax_meta[ $taxonomy ][ $old_term_id ];
unset( $tax_meta[ $taxonomy ][ $old_term_id ] );
update_option( 'wpseo_taxonomy_meta', $tax_meta );
}
}
add_action( 'split_shared_term', 'wpseo_split_shared_term', 10, 4 );
/**
* Get all WPSEO related capabilities.
*
* @since 8.3
* @return array
*/
function wpseo_get_capabilities() {
if ( ! did_action( 'wpseo_register_capabilities' ) ) {
do_action( 'wpseo_register_capabilities' );
}
return WPSEO_Capability_Manager_Factory::get()->get_capabilities();
}
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