Question

我开始为我的网站构建一个插件，但我得到错误的所有方法标题全部已发送我试图以不同的方式改变我的代码，但我总是得到同样的错误。

插件在激活期间生成了3个意外结果字符。如果您发现“已发送标头”消息，Feed问题或其他问题，请尝试禁用或删除此插件。

我已经建议更改，现在菜单工作和发布类型，但我仍然留下所有准备发送的标题的问题，我已经尝试打开原子编辑器并保存，但它解决问题

这是完整的代码

<?php
/*
Plugin Name: Post type linksmd.
Version: 1.0
Description: post type linksmd.
Plugin URI: https://mediaads.eu/
Author: Helder Ventura
Author URI: https://mediaads.eu
Version: (standalone)
Usage: install activate and done
*/
// Our custom post type function
function create_posttype() {

register_post_type( 'linksmdmd',
// CPT Options
    array(
        'labels' => array(
            'name' => __( 'linksmd' ),
            'singular_name' => __( 'linksmd' )
        ),
        'public' => true,
        'has_archive' => true,
        'rewrite' => array('slug' => 'linksmd'),
    )
);
}

/*
* Creating a function to create our CPT
*/

function custom_post_type() {

// Set UI labels for Custom Post Type
$labels = array(
    'name'                => _x( 'linksmd', 'Post Type General Name', 'Divi' 
),
    'singular_name'       => _x( 'Link', 'Post Type Singular Name', 'Divi' 
),
    'menu_name'           => __( 'linksmd', 'Divi' ),
    'parent_item_colon'   => __( 'Parent Link', 'Divi' ),
    'all_items'           => __( 'All linksmd', 'Divi' ),
    'view_item'           => __( 'View Link', 'Divi' ),
    'add_new_item'        => __( 'Add New Link', 'Divi' ),
    'add_new'             => __( 'Add New', 'Divi' ),
    'edit_item'           => __( 'Edit Link', 'Divi' ),
    'update_item'         => __( 'Update Link', 'Divi' ),
    'search_items'        => __( 'Search Link', 'Divi' ),
    'not_found'           => __( 'Not Found', 'Divi' ),
    'not_found_in_trash'  => __( 'Not found in Trash', 'Divi' ),
);

// Set other options for Custom Post Type

$args = array(
    'label'               => __( 'linksmd', 'Divi' ),
    'description'         => __( 'Link news and reviews', 'Divi' ),
    'labels'              => $labels,
    // Features this CPT supports in Post Editor
    'supports'            => array( 'title', 'editor', 'excerpt', 'author', 'thumbnail', 'comments', 'revisions', 'custom-fields', ),
    // You can associate this CPT with a taxonomy or custom taxonomy.
    'taxonomies'          => array( 'genres' ),
    /* A hierarchical CPT is like Pages and can have
    * Parent and child items. A non-hierarchical CPT
    * is like Posts.
    */
    'hierarchical'        => false,
    'public'              => true,
    'show_ui'             => true,
    'show_in_menu'        => true,
    'show_in_nav_menus'   => true,
    'show_in_admin_bar'   => true,
    'menu_position'       => 5,
    'can_export'          => true,
    'has_archive'         => true,
    'exclude_from_search' => false,
    'publicly_queryable'  => true,
    'capability_type'     => 'page',
);

// Registering your Custom Post Type
register_post_type( 'linksmd', $args );

}

/* Hook into the 'init' action so that the function
* Containing our post type registration is not
* unnecessarily executed.
*/

add_action( 'init', 'custom_post_type', 0 );

// Hooking up our function to theme setup
add_action( 'init', 'create_posttype' );

function wpb_postsbycategory() {
// the query
$the_query = new WP_Query( array( 'category_name' => 'linksmd', 'posts_per_page' => 10 ) );

// The Loop
if ( $the_query->have_posts() ) {
$string .= '<ul class="postsbycategory widget_recent_entries">';
while ( $the_query->have_posts() ) {
    $the_query->the_post();
        if ( has_post_thumbnail() ) {
        $string .= '<li>';
        $string .= '<a href="' . get_the_permalink() .'" rel="bookmark">' . get_the_post_thumbnail($post_id, array( 50, 50) ) . get_the_title() .'</a></li>';
        } else {
        // if no featured image is found
        $string .= '<li><a href="' . get_the_permalink() .'" rel="bookmark">' . get_the_title() .'</a></li>';
        }
        }
} else {
// no posts found
}
$string .= '</ul>';

return $string;

/* Restore original Post Data */
wp_reset_postdata();
}
// Add a shortcode
add_shortcode('categoryposts', 'wpb_postsbycategory');

// Enable shortcodes in text widgets
add_filter('widget_text', 'do_shortcode');
?>

Answer 1

激活期间意外结果的3个字符

最可能的BOM单一，在Atom编辑器中打开此文件并重新保存。

以防万一

您的插件只有resiter_post_type('Links'，您没有必要。做曾经。

'category_name' => 'Links'

query_posts，您确定要使用自定义帖子类型而不是自定义分类吗？
将该别名保持为小型，机器人Links，但links。更多的是，将links更改为其他内容。就我记忆而言，links是一个遗产类别，并且你在体育上会遇到问题。

自定义帖子类型插件错误

1 个答案: