<?php if(function_exists(‘wp_nav_menu’)) wp_nav_menu(array(‘container’ => false, ‘items_wrap’ => ‘%3$s’, ‘theme_location’ => ‘header-menu’)); ?>
<?php
$array = array(
‘hide_current’ => 1
);
pll_the_languages($array);
?>

register_nav_menus(array(‘header-menu’ => __( ‘导航自定义菜单’ ),));

<?php
    $defaults = array(
        'container'=>false, //父级div为空
        'link_before' => '<span>',//a标签文字前加<span>标签
        'link_after' => '</span>',//a标签文字后加</span>标签
 ); wp_nav_menu($defaults); ?>

wp_nav_menu( array(
    'theme_location'  => '',//导航别名
    'menu'   => '', //期望显示的菜单
    'container'  => 'div',  //容器标签
    'container_class' => '',//ul父节点class值
    'container_id'  => '',  //ul父节点id值
    'menu_class'   => 'menu',   //ul节点class值
    'menu_id'   => '',  //ul节点id值
    'echo'  => true,//是否输出菜单，默认为真
    'fallback_cb' => 'wp_page_menu',  //菜单不存在时，返回默认菜单，设为false则不返回
    'before' => '', //链接前文本
    'after'  => '', //链接后文本
    'link_before'  => '',   //链接文本前
    'link_after'  => '',//链接文本后
    'items_wrap'  => '<ul id="%1$s" class="%2$s">%3$s</ul>',   //如何包装列表
    'depth' => 0,   //菜单深度，默认0
    'walker' => ''  //自定义walker
  ) );
?>