我对Wordpress很陌生，尤其是在PHP编程方面。我正在使用Ciola Theme from Theme Forest. 我想实现的是在主菜单下显示一个子菜单，但仅针对特定类别。我在theme中添加了菜单core-functions.php:

add_theme_support( \'menus\' );
    // registering menus
    register_nav_menus(
        array(
    \'top\' => \'Top Navigation Menu\', // top nav
    \'main\' => \'Main Navigation Menu\', // main nav in header
    \'wybrzeze\' => \'Wybrzeże Navigation Menu\', // wybrzeze nav in header
    \'footer\' => \'Footer Navigation Menu\',  // secondary nav in footer
        )
    );

我的条目是wybrzeze，Wybrzeże导航菜单。

然后我编辑了header.php 文件以尝试添加主题支持者要求我填写的一些信息：

<!-- Holding main menu -->
        <?php  if ( has_nav_menu( \'main\' ) ) { 
                    $cb_main_menu = wp_nav_menu(
                        array(
                            \'echo\'           => FALSE, 
                            \'container_class\' => \'cb-main-menu\',
                            \'theme_location\' => \'main\',                    
                            \'depth\' => 0,                                   
                            \'walker\' => new CB_Walker,                                  
                            \'items_wrap\' => \'<ul class="nav main-nav clearfix sf-menu">%3$s</ul>\',
                            )); 
                }
        ?>

<!-- Holding Wybrzeze menu -->
        <?php  if ( has_nav_menu( \'wybrzeze\' ) ) { 
                    $cb_main_menu = wp_nav_menu(
                        array(
                            \'echo\'           => FALSE, 
                            \'container_class\' => \'cb-main-menu\',
                            \'theme_location\' => \'main\',                    
                            \'depth\' => 0,                                   
                            \'walker\' => new CB_Walker,                                  
                            \'items_wrap\' => \'<ul class="nav main-nav clearfix sf-menu">%3$s</ul>\',
                            )); 
                }
        ?>

如果我理解正确，这就是我必须添加子菜单的地方。在收割台的最末端。php有几个div负责显示“main”菜单：

<nav role="navigation">

         <div id="cb-main-menu" class="wrap clearfix"><?php if ( has_nav_menu( \'main\' ) ) { echo $cb_main_menu; } ?> </div>
                     <div id="cb-main-menu-mob" class="wrap clearfix"><div id="cb-mob-dropdown-main"></div><?php if ( has_nav_menu( \'main\' ) ) {  main_nav(); } ?></div>

现在，我的问题是：是否有可能实现this picture?

有没有办法让第二行菜单只显示选定的类别？

我在考虑使用if/else PHP循环和WP引用<?php is_category( $category ); ?> 但不幸的是，我不知道如何做到这一点，我不想打破主题。。。我将非常感谢您的帮助：）

&更新；解决方案：

幸亏Bindiya Patoliya 我找到了解决方案：

<?php if(is_category(\'teatr-wybrzeze\')) {
wp_nav_menu( array(
\'container_id\' => \'cb-main-menu\',
\'container_class\' => \'wrap clearfix\',
\'theme_location\' => \'rafalmenu\',                    
\'depth\' => 0,                                                                   
\'items_wrap\' => \'<ul class="nav main-nav clearfix sf-menu">%3$s</ul>\',
\'walker\' => new CB_Walker
) );
} ?>

现在效果很好！非常感谢！

if(is_category()) {
wp_nav_menu( array(
\'theme_location\' => \'menu-97226\',
\'walker\' => new Menu_Walker_97226()
) );
}

 <?php if(is_category(\'teatr-wybrzeze\')) {
wp_nav_menu( array(
\'container_id\' => \'cb-main-menu\',
\'container_class\' => \'wrap clearfix\',
\'theme_location\' => \'rafalmenu\',                    
\'depth\' => 0,                                                                   
\'items_wrap\' => \'<ul class="nav main-nav clearfix sf-menu">%3$s</ul>\',
\'walker\' => new CB_Walker
) );
} ?>