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The parent class uses `$current_object_id` while most of the child classes use `$id`. As the parent class' is more descriptive, renaming the last parameter in each of child class. Why? PHP 8 introduces the ability to pass named arguments to function/method calls. This means the child and parent method signatures (i.e. parameter names) need to match. Changes for readability: - `@since` clearly specifies the original parameter name and its new name as well as why the change happened. - In methods longer than a single line, the generic parameter is reassigned to the original parameter restoring it for context for use within the method. An inline comment is added to explain why this reassignment is made. - In cases where the original parameter name was too generic or misleading, renamed (when reassigning) to a more descriptive name for use within the method. Follow-up to [7737], [8900], [8970], [14248], [15077], [16100], [25642], [25644], [37051], [37054], [37056], [46271], [47189], [51739]. Props jrf, hellofromTonya, sergeybiryukov, azaozz, desrosj, johnbillion. See #51553. Built from https://develop.svn.wordpress.org/trunk@51779 git-svn-id: http://core.svn.wordpress.org/trunk@51386 1a063a9b-81f0-0310-95a4-ce76da25c4cd
87 lines
2.4 KiB
PHP
87 lines
2.4 KiB
PHP
<?php
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/**
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* Taxonomy API: Walker_CategoryDropdown class
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*
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* @package WordPress
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* @subpackage Template
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* @since 4.4.0
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*/
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/**
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* Core class used to create an HTML dropdown list of Categories.
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*
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* @since 2.1.0
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*
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* @see Walker
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*/
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class Walker_CategoryDropdown extends Walker {
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/**
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* What the class handles.
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*
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* @since 2.1.0
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* @var string
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*
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* @see Walker::$tree_type
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*/
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public $tree_type = 'category';
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/**
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* Database fields to use.
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*
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* @since 2.1.0
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* @todo Decouple this
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* @var array
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*
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* @see Walker::$db_fields
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*/
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public $db_fields = array(
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'parent' => 'parent',
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'id' => 'term_id',
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);
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/**
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* Starts the element output.
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*
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* @since 2.1.0
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* @since 5.9.0 Renamed `$category` to `$data_object` and `$id` to `$current_object_id`
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* to match parent class for PHP 8 named parameter support.
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*
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* @see Walker::start_el()
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*
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* @param string $output Used to append additional content (passed by reference).
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* @param WP_Term $data_object Category data object.
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* @param int $depth Depth of category. Used for padding.
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* @param array $args Uses 'selected', 'show_count', and 'value_field' keys, if they exist.
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* See wp_dropdown_categories().
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* @param int $current_object_id Optional. ID of the current category. Default 0.
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*/
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public function start_el( &$output, $data_object, $depth = 0, $args = array(), $current_object_id = 0 ) {
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// Restores the more descriptive, specific name for use within this method.
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$category = $data_object;
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$pad = str_repeat( ' ', $depth * 3 );
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/** This filter is documented in wp-includes/category-template.php */
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$cat_name = apply_filters( 'list_cats', $category->name, $category );
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if ( isset( $args['value_field'] ) && isset( $category->{$args['value_field']} ) ) {
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$value_field = $args['value_field'];
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} else {
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$value_field = 'term_id';
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}
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$output .= "\t<option class=\"level-$depth\" value=\"" . esc_attr( $category->{$value_field} ) . '"';
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// Type-juggling causes false matches, so we force everything to a string.
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if ( (string) $category->{$value_field} === (string) $args['selected'] ) {
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$output .= ' selected="selected"';
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}
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$output .= '>';
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$output .= $pad . $cat_name;
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if ( $args['show_count'] ) {
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$output .= ' (' . number_format_i18n( $category->count ) . ')';
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}
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$output .= "</option>\n";
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}
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}
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