为什么这个代码片段会在我的站点上创建一个关键错误？

Question

这段代码片段过去工作正常，但是更新到PHP8.0之后，当WC订单切换到这种自定义状态时，它就会破坏站点

//Add custom bulk action in dropdown

add_filter( 'bulk_actions-edit-shop_order', 'register_bulk_action_printed' ); 

function register_bulk_action_printed( $bulk_actions ) {

    $bulk_actions['mark_as_printed'] = 'Change status to Printed';  
    return $bulk_actions;
}

//Bulk action handler

add_action( 'admin_action_mark_as_printed', 'bulk_process_status_printed' );

function bulk_process_status_printed() {
    
    if( !isset( $_REQUEST['post'] ) && !is_array( $_REQUEST['post'] ) )
        return;
        
    foreach( $_REQUEST['post'] as $order_id ) {
    
        $order = new WC_Order( $order_id );
        $order_note = 'That\'s what happened by bulk edit:';
        $order->update_status( 'wc-printed', $order_note, true ); 
        
    }
    
    $location = add_query_arg( array(
        'post_type' => 'shop_order',
        'marked_as_printed' => 1, // marked_as_printed=1 is just the $_GET variable for notices
        'changed' => count( $_REQUEST['post'] ), // number of changed orders
        'ids' => join( $_REQUEST['post'], ',' ),
        'post_status' => 'all'
    ), 'edit.php' );

    wp_redirect( admin_url( $location ) );
    exit;

}

/*
 * Notices
 */
add_action('admin_notices', 'custom_order_status_notices_printed');

function custom_order_status_notices_printed() {
 
    global $pagenow, $typenow;
  
    if( $typenow == 'shop_order' 
     && $pagenow == 'edit.php'
     && isset( $_REQUEST['marked_as_printed'] )
     && $_REQUEST['marked_as_printed'] == 1
     && isset( $_REQUEST['changed'] ) ) {
 
        $message = sprintf( _n( 'Order status changed.', '%s order statuses changed.', $_REQUEST['changed'] ), number_format_i18n( $_REQUEST['changed'] ) );
        echo "{$message}";
    
    }
    
}

这是我得到的错误：

PHP Fatal error: Uncaught TypeError: join(): Argument #2 ($array) must be of type ?array, string given in /nas/content/live/allstaruhlmann/wp-content/plugins/code-snippets/php/snippet-ops.php(484) : eval()'d code:32\nStack trace:\n#0 /nas/content/live/allstaruhlmann/wp-content/plugins/code-snippets/php/snippet-ops.php(484) : eval()'d code(32): join(Array, ',')\n#1 /nas/content/live/allstaruhlmann/wp-includes/class-wp-hook.php(307): bulk_process_status_printed('')\n#2 /nas/content/live/allstaruhlmann/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters('', Array)\n#3 /nas/content/live/allstaruhlmann/wp-includes/plugin.php(476): WP_Hook->do_action(Array)\n#4 /nas/content/live/allstaruhlmann/wp-admin/admin.php(419): do_action('admin_action_ma...')\n#5 /nas/content/live/allstaruhlmann/wp-admin/edit.php(10): require_once('/nas/content/li...')\n#6 {main}\n thrown in /nas/content/live/allstaruhlmann/wp-content/plugins/code-snippets/php/snippet-ops.php(484) : eval()'d code on line 32, referer: https://allstaruhlmann.com/wp-admin/edit.php?post_type=shop_order

Answer 1

在bulk_process_status_printed()中的这一行：

'ids' => join( $_REQUEST['post'], ',' ),

您已经向后显示了参数:应该是连接(分隔符，数组)：

'ids' => join( ',', $_REQUEST['post'] ),

这实际上是PHP8更改，而不是WordPress 6。

8.0.0 -不再支持数组后传递分隔符。

Answer 2

WordPress中的关键错误通常是由于插件、脚本或代码出现故障而导致的，这些插件、脚本或代码妨碍了WordPress正常工作。

除非您解决了此问题，否则WordPress无法加载它所需的其余文件。