问题描述：

I am trying to add a div after any submenu items in a WordPress menu. I am working on the following code in the functions.php file:

add_filter( \'nav_menu_link_attributes\', \'SubMenuCheck\', 10, 3 );
function SubMenuCheck( $atts, $item, $args ) {
if (in_array(\'menu-item-has-children\', $item->classes)) {
$args->after = \'<div class=\"click\">+</div>\';
}
return $atts;
}

The code above adds the new div <div class=\"click\">+</div>but keeps applying it to all parent and child items after the first \'menu-item-has-children\' class:

Does anyone know why this is repeating?... I only want the div to display for items with the menu-item-has-children class.

Thanks

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感谢您的意见，我们尽快改进~

功能建议

我正在尝试在WordPress菜单中的任何子菜单项之后添加div。 我正在处理functions.php文件中的以下代码：</ p>

  add_filter（\'nav_menu_link_attributes\'，\'SubMenuCheck\'，10,3）; 
function SubMenuCheck（$ atts，  $ item，$ args）{
if（in_array（\'menu-item-has-children\'，$ item-＆gt; classes））{
$ args-＆gt; after =\'＆lt; div class =“click”  ＆gt; +＆lt; / div＆gt;\'; 
} 
返回$ atts; 
} 
</ code> </ pre> 
上面的代码添加了新的div ＆lt  ; div class =“click”＆gt; +＆lt; / div＆gt; </ code>但在第一个\'menu-item-has-children\'类后继续将它应用于所有父项和子项：</ p> 
\\  n 
    </ p> 
有谁知道为什么会重复这个？...我只想显示带有<代码的项目的div  > menu-item-has-children </ code> class。</ p> 
谢谢</ p> 
</ div> 
网友观点：
I don\'t use the nav_menu_link_attributes filter, to add a button (which is semantically correct) to be the hot spot for toggling the children, I use the following:
function prefix_add_button_after_menu_item_children( $item_output, $item, $depth, $args ) {
if ( $args->theme_location == \'primary\' ) {
if ( in_array( \'menu-item-has-children\', $item->classes ) || in_array( \'page_item_has_children\', $item->classes ) ) {
$item_output = str_replace( $args->link_after . \'</a>\', $args->link_after . \'</a><button class=\\\"sub-menu-toggle\\\" aria-expanded=\\\"false\\\" aria-pressed=\\\"false\\\"><span class=\\\"screen-reader-text\\\">\' . _x( \'open dropdown menu\', \'verb: open the menu\', \'text-domain\' ) . \'</span></button>\', $item_output );
}
}
return $item_output;
}
add_filter( \'walker_nav_menu_start_el\', \'prefix_add_button_after_menu_item_children\', 10, 4 );