允许您的特定<new-page> 元素，您可以添加过滤器，以便WP将其识别为允许的标记：

// Step one - add to the allowed tags
add_action(\'init\', function() {
    // Access the global allowed tags array
    global $allowedtags;
    // Add new-page as an allowed tag
    $allowedtags[\'new-page\'] = array();
    // If you ever use attributes such as <new-page href="url" title="My Title">
    // Then you\'ll need to include those within the array like so:
    // $allowedtags[\'new-page\'] = array(\'href\' => array(), \'title\' => array());
});

// Step two - add to allowed tags in TinyMCE (the editor)
add_filter(\'tiny_mce_before_init\', function($a) {
    $a[\'extended_valid_elements\'] = \'new-page\';
    // Again if you ever need attributes, you\'ll specify those here
    // $a[\'extended_valid_elements\'] = \'new-page[href|title]\';
    return $a;
});