WordPress自定义标题-错误 _网站开发

我有一个快速的问题。我正在努力使Twentyseventeen主题成为子主题, 并且试图覆盖custom_header代码, 但出现以下错误：

PHP Fatal error:Cannot redeclare twentyseventeen_custom_header_setup() (previously declared in /Applications/MAMP/htdocs/wordpress/wp-content/themes/twentyseventeen/inc/custom-header.php:36) in /Applications/MAMP/htdocs/wordpress/wp-content/themes/twentyseventeen/inc/custom-header.php on line 52

我尝试重命名该函数, 因此不会重新声明它, 但不能解决问题。到目前为止, 我还没有真正在主题中添加任何其他代码。我还模仿了目录结构, 使其与父主题相同：
资产functions.php inc custom_header.php index.php …
这是我到目前为止拥有的文件：
Functions.php

< ?php

函数二十十七岁儿童_enqueue_styles(){$ parent_style =’ parent-style’ ;

wp_enqueue_style( $parent_style, get_template_directory_uri() . '/style.css' ); wp_enqueue_style( 'child-style', get_stylesheet_directory_uri() . '/style.css', array( $parent_style ) ); } add_action( 'wp_enqueue_scripts', 'twentyseventeenchild_enqueue_styles' ); /** * Implement the Custom Header feature. */ require get_parent_theme_file_path( '/inc/custom-header.php' ); ?>

custom_header.php

< ?php

/ ** *自定义标头实现* * @link https://codex.wordpress.org/Custom_Headers * * @package WordPress * @subpackage Twenty_Seventeen * @始于1.0 * /
/ ** *设置WordPress核心自定义标头功能。 * * @使用二十岁十七岁的人的头衔()* /函数二十岁十七岁的客户的头衔(){

/** * Filter Twenty Seventeen custom-header support arguments. * * @since Twenty Seventeen 1.0 * * @param array $args { *An array of custom-header support arguments. * *@type string $default-imageDefault image of the header. *@type string $default_text_colorDefault color of the header text. *@type int$widthWidth in pixels of the custom header image. Default 954. *@type int$heightHeight in pixels of the custom header image. Default 1300. *@type string $wp-head-callbackCallback function used to styles the header image and text *displayed on the blog. *@type string $flex-heightFlex support for height of header. * } */ add_theme_support( 'custom-header', apply_filters( 'twentyseventeen_custom_header_args', array( 'default-image'=> get_parent_theme_file_uri( '/assets/images/header.jpg' ), 'width'=> 2000, 'height'=> 1200, 'flex-height'=> true, 'video'=> true, 'wp-head-callback'=> 'twentyseventeen_header_style', ) ) ); register_default_headers( array( 'default-image' => array( 'url'=> '%s/assets/images/header.jpg', 'thumbnail_url' => '%s/assets/images/header.jpg', 'description'=> __( 'Default Header Image', 'twentyseventeen' ), ), ) ); } add_action( 'after_setup_theme', 'twentyseventeen_custom_header_setup' ); ?>

#1【WordPress自定义标题-错误】在我发布问题之后。我要做的就是将这段代码添加到我的functions.php中

$custom_header_args = array( 'default-image' => get_theme_file_uri( '/assets/images/header.jpg' ), 'width' => 2000, 'height' => 1200, 'flex-height' => true, 'video' => true, ); add_theme_support('custom-header', $custom_header_args);