<?php
/**
* Taxonomy API: Walker_CategoryDropdown class
*
* @package WordPress
* @subpackage Template
* @since 4.4.0
*/
/**
* Core class used to create an HTML dropdown list of Categories.
*
* @since 2.1.0
*
* @see Walker
*/
class Walker_CategoryDropdown extends Walker {
/**
* What the class handles.
*
* @since 2.1.0
* @var string
*
* @see Walker::$tree_type
*/
public $tree_type = 'category';
/**
* Database fields to use.
*
* @since 2.1.0
* @todo Decouple this
* @var string[]
*
* @see Walker::$db_fields
*/
public $db_fields = array(
'parent' => 'parent',
'id' => 'term_id',
);
/**
* Starts the element output.
*
* @since 2.1.0
* @since 5.9.0 Renamed `$category` to `$data_object` and `$id` to `$current_object_id`
* to match parent class for PHP 8 named parameter support.
*
* @see Walker::start_el()
*
* @param string $output Used to append additional content (passed by reference).
* @param WP_Term $data_object Category data object.
* @param int $depth Depth of category. Used for padding.
* @param array $args Uses 'selected', 'show_count', and 'value_field' keys, if they exist.
* See wp_dropdown_categories().
* @param int $current_object_id Optional. ID of the current category. Default 0.
*/
public function start_el( &$output, $data_object, $depth = 0, $args = array(), $current_object_id = 0 ) {
// Restores the more descriptive, specific name for use within this method.
$category = $data_object;
$pad = str_repeat( ' ', $depth * 3 );
/** This filter is documented in wp-includes/category-template.php */
$cat_name = apply_filters( 'list_cats', $category->name, $category );
if ( isset( $args['value_field'] ) && isset( $category->{$args['value_field']} ) ) {
$value_field = $args['value_field'];
} else {
$value_field = 'term_id';
}
$output .= "\t<option class=\"level-$depth\" value=\"" . esc_attr( $category->{$value_field} ) . '"';
// Type-juggling causes false matches, so we force everything to a string.
if ( (string) $category->{$value_field} === (string) $args['selected'] ) {
$output .= ' selected="selected"';
}
$output .= '>';
$output .= $pad . $cat_name;
if ( $args['show_count'] ) {
$output .= ' (' . number_format_i18n( $category->count ) . ')';
}
$output .= "</option>\n";
}
}
في جولة حصرية داخل “الغرفة الزرقاء” بقناة BBC العربية، نكشف كواليس واحدة من أكثر غرف الأخبار تطورًا في العالم.
كيف الذكاء اصطناعي يتحكم بالبث دون تدخل بشري، لتقدم تجربة بصرية مذهلة.
الفيديو يستعرض كيف تمزج BBC بين التقنية والاحتراف لتصنع نشرات إخبارية من قلب المستقبل.