As the sun rises and the forest mist clears, and the clouds return and the caves darken, these changes of light and shadow are the morning and evening in the mountains. Wildflowers bloom with their subtle fragrance, fine trees flourish with their dense shade, the wind and frost are pure and clean, and the water recedes to reveal the rocks—these are the four seasons in the mountains. Going out in the morning and returning in the evening, the scenery of the four seasons is different, and the joy is endless.至于负者歌于途,行者休于树,前者呼,后者应,伛偻提携,往来而不绝者,滁人游也。临溪而渔,溪深而鱼肥,酿泉为酒,泉香而酒洌,山肴野蔌,杂然而前陈者,太守宴也。宴酣之乐,非丝非竹,射者中,弈者胜,觥筹交错,起坐而喧哗者,众宾欢也。苍颜白发,颓然乎其间者,太守醉也。
<?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( '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 int|WP_Post|null $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 int|WP_Post|null $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 $text 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( $text, $args, $omit = [] ) {
$replacer = new WPSEO_Replace_Vars();
return $replacer->replace( $text, $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 $replacevar_name 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( $replacevar_name, $replace_function, $type = 'advanced', $help_text = '' ) {
return WPSEO_Replace_Vars::register_replacement( $replacevar_name, $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'] !== [] ) ) {
$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 !== [] ) {
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 !== [] ) {
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' );
if ( ! 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 $text String input to validate.
*
* @return bool
*/
function ctype_digit( $text ) {
$return = false;
if ( ( is_string( $text ) && $text !== '' ) && preg_match( '`^\d+$`', $text ) === 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.
*
* @return void
*/
function wpseo_split_shared_term( $old_term_id, $new_term_id, $term_taxonomy_id, $taxonomy ) {
$tax_meta = get_option( 'wpseo_taxonomy_meta', [] );
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();
}