我正在尝试将所有菜单项转换为标题框；这是我用来将输出更改为标题大小写的函数：
function titleCase($title) {
$smallwordsarray = array( \'of\',\'a\',\'the\',\'and\',\'an\',\'or\',\'nor\',\'but\',\'is\',\'if\',\'then\',\'else\',\'when\', \'at\',\'from\',\'by\',\'on\',\'off\',\'for\',\'in\',\'to\',\'into\',\'with\' );
// Split the string into separate words
$words = explode(\' \', $title);
foreach ($words as $key => $word) {
// If this word is the first, or it\'s not one of our small words, capitalise it
// with ucwords().
if ($key == 0 or !in_array($word, $smallwordsarray))
$words[$key] = ucwords($word);
}
// Join the words back into a string
$newtitle = implode(\' \', $words);
return $newtitle;
}
}
例如，如果我想更改标题输出，我可以这样做：
echo titleCase(get_the_title());
问题是我不知道如何将上述函数应用于wp\\u nav\\u menu（）输出：
<?php wp_nav_menu( array( \'theme_location\' => \'primary\', \'menu_id\' => \'primary-menu\' ) ); ?>
非常感谢您的帮助。
SO网友:Svartbaard
看看下面的内容是否对你有用，我昨天发布了相关内容，以回答今天讨论的另一个问题。另请参见法典中关于继承Walker\\u Nav\\u菜单的要点。随后，您可以修改菜单的输出并使用您的功能。
法典中的示例：
<?php
class Walker_Quickstart_Menu extends Walker {
// Tell Walker where to inherit it\'s parent and id values
var $db_fields = array(
\'parent\' => \'menu_item_parent\',
\'id\' => \'db_id\'
);
/**
* At the start of each element, output a <li> and <a> tag structure.
*
* Note: Menu objects include url and title properties, so we will use those.
*/
function start_el( &$output, $item, $depth = 0, $args = array(), $id = 0 ) {
$output .= sprintf( "\\n<li><a href=\'%s\'%s>%s</a></li>\\n",
$item->url,
( $item->object_id === get_the_ID() ) ? \' class="current"\' : \'\',
$item->title
);
}
}
以及
<ul>
<?php
wp_nav_menu(array(
\'menu\' => 2, //menu id
\'walker\' => new Walker_Quickstart_Menu() //use our custom walker
));
?>
</ul>
参考号：
https://codex.wordpress.org/Class_Reference/Walker
