分页使用

public function test()
{
    $config['base_url'] = site_url('user/test');
    $config['total_rows'] = '200';
    $config['per_page'] = '20';


    // 转成整数,获取内容
    $offset = intval($this->uri->segment(3));
    // 在这里拼接sql语句，这里返回的是偏移量
    echo $offset;

    // 自定义内容
    $config['first_link'] = '首页';
    $config['last_link'] = '尾页';
    $config['next_link'] = '下一页';
    $config['prev_link'] = '上一页';

    $this->pagination->initialize($config);

    echo $this->pagination->create_links();

}

注意：__contruct方法写完之后，要添加parent::__contruct否则会找不到

文件上传

user.php

public function upload()
{
    echo "upload";
    $config['upload_path'] = './uploads/';
    $config['allowed_types'] = 'gif|jpg|png';

    $this->load->library('upload', $config);
    $bool = $this->upload->do_upload('pic');
    echo $bool;
    // $this->upload->initialize($config);
     var_dump($this->upload->data());
    $data = $this->upload->data();
    echo $data['file_name'];
}

uploadfile.php

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <title>上传文件</title>
    <link rel="stylesheet" href="">
</head>
<body>
    <form action="<?php echo site_url('user/upload') ?>" method="post" enctype="multipart/form-data">
        <input type="file" name="pic" />
        <input type="submit" value="上传" />
    </form>
</body>
</html>