渲染布局codeigniter

这几天我一直在苦苦挣扎。不能渲染列表视图，也不能访问main.php(主模板)中定义的$settings。任何帮助都太好了!我的控制器:

public function index()
{
$_SESSION['userdata']['grupo'] = 'CL';
return  view('boda');
}

my template main.php

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/js/bootstrap.bundle.min.js" integrity="sha384-MrcW6ZMFYlzcLA8Nl+NtUVF0sA7MsXsP1UyJoMp4YLEuNSfAP+JcXn/tWtIaxVXM" crossorigin="anonymous"></script>
<title></title>
</head>
<body>
<?php $settings = new ConfigNcweb(); ?>
<nav class="navbar navbar-expand-lg bg-light">
<div class="container-fluid">
<a class="navbar-brand" href="#">Navbar</a>
<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav me-auto mb-2 mb-lg-0">
<li class="nav-item">
<a class="nav-link active" aria-current="page" href="#">Home</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
<li class="nav-item">
<a class="nav-link disabled">Disabled</a>
</li>
</ul>
</div>
</div>
</nav>
<div class="container">
<?= $this->renderSection('templates/lista') ?>
<?= $this->renderSection('content')?>
</div>
<script src="https://cdn.jsdelivr.net/npm/@popperjs/core@2.9.2/dist/umd/popper.min.js" integrity="sha384-IQsoLXl5PILFhosVNubq5LC7Qb9DXgDA9i+tQ8Zj3iwWAwPtgFTxbJ8NT4GN1R8p" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/js/bootstrap.min.js" integrity="sha384-cVKIPhGWiC2Al4u+LWgxfKTRIcfu0JTxR+EQDz/bgldoEyl4H0zUF0QKbrJ0EcQF" crossorigin="anonymous"></script>
</body>
</html>

My view content.php

<?=$this->extend('layouts/main')?>
<?=$this->section('content')?>
this is content
<?=$this->endSection()?>

my view list .php

<?=$this->extend('layouts/main')?>
<?=$this->section('lista')?>
<ul class="list-group">
<li class="list-group-item">An item</li>
<li class="list-group-item">A second item</li>
<li class="list-group-item">A third item</li>
<li class="list-group-item">A fourth item</li>
<li class="list-group-item">And a fifth one</li>
</ul>
<?=$this->endSection()?>

你不能这样渲染lista.php。当您使用布局模板时，您为一个视图文件调用view()方法(在您的情况下，将是content.php或lista.php)，它被插入到layout.php模板中。要从布局模板呈现其他视图，请使用view()或view_cell()。或者您可以合并两个文件，从一个view()调用呈现它们的内容:

content.php:

<?=$this->extend('layouts/main')?>
<?=$this->section('content')?>
this is content
<?=$this->endSection()?>
<?=$this->section('lista')?>
<ul class="list-group">
<li class="list-group-item">An item</li>
<li class="list-group-item">A second item</li>
<li class="list-group-item">A third item</li>
<li class="list-group-item">A fourth item</li>
<li class="list-group-item">And a fifth one</li>
</ul>
<?=$this->endSection()?>

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