我只是想知道使用codeigniter实现菜单，页眉和页脚以及更改内容（例如通知）的最佳方法/实践。
例如，假设我在标题菜单中有一个警报，该警报链接回数据库中的数据，并且我需要在每次加载页面时检查更改。最初我认为我可以每次都使用 $this->load->view（'header'） 调用标头，但这意味着我需要一个全局函数来计算警报的任何更改，然后将其传递给标题视图，每次，不好！
我想我需要一种全局方法来调用函数，该函数从任何控制器加载网站标题（菜单），该控制器计算出内容并相应地显示视图。
例如显示博客页面的控制器。
在控制器构造函数中 - 定义博客视图文件所在的文件夹和模板名称
// the folder your content files are in
$this->templatefolder = 'blog' ;
// the template name
$this->view_template = 'blog_template' ;
在准备调用某些视图的方法中
$data['content01'] = 'search_articles';
$data['content02'] = 'main_article';
$data['content03'] = 'suggested_articles';
$this->load->view( $this->view_template, $data );
模板本身视图/blog_template.php
// opening html etc that is generic to website
$this->load->view('tmpl_open');
// so if the header has to be dynamic
// get the header from a model (or library etc)
// and either pass the header content or just echo it out directly
$this->load->model('header');
if( ! $newHeader = $this->header->returnNewHeader() )
{
// fallback if the header doesn't come back from the model
$this->load->view('default_header');
}
else
{ echo $newHeader ; }
// this is optional but IF the template folder is not set
// we have a default folder called 'pages' to look in for the content views
// but in this example the folder is set to be 'blog'
// so the blog view files will be in application/views/blog/search_articles.php etc etc
if( isset($this->templatefolder)){
$templatefolder = $this->templatefolder . '/' ; }
else { $templatefolder = 'pages/'; }
// header that is specific for the content
$this->load->view($templatefolder . 'header');
// so in this specific example its going to load 3 view files, but this part is completely flexible
if(isset($content01))
$this->load->view($templatefolder.$content01);
if(isset($content02))
$this->load->view($templatefolder.$content02);
if(isset($content03))
$this->load->view($templatefolder.$content03);
if(isset($content04))
$this->load->view($templatefolder.$content04);
if(isset($content05))
$this->load->view($templatefolder.$content05);
if(isset($content06))
$this->load->view($templatefolder.$content06);
if(isset($content07))
$this->load->view($templatefolder.$content07);
if(isset($content08))
$this->load->view($templatefolder.$content08);
// example of an optional file that you can uncomment for testing
// $this->load->view('objecttesting');
// bottom nav bar generic to website
$this->load->view('tmpl_footer');
// closing html etc generic to website
$this->load->view('tmpl_close');