加载自定义库

class custom_library
{
    public $CI, $user_data = array();
    private $_user_id = 0;
    
    public function __construct(){
        $this->CI = & get_instance();
        $this->user_id = $this->CI->user_data['user_id'];
    }
    
    function test(){
        echo $this->user_id;
    }
}

$this->load->library('custom_library');
$this->custom_library->user_data = $this->user_data;

$params必须是数组。From the documentation：
在库加载函数中，你可以通过第二个参数动态地将数据作为数组传递，它将被传递给你的类构造函数：

$params = array('type' => 'large', 'color' => 'red');

$this->load->library('Someclass', $params);

在你的例子中，你想做这样的事情：

function test()
{
    $params[] = "abc"; // $params is an array
    $this->load->library("test_lib",$params);
}

类Test_lib

################# [My Library Code Test_lib.php ] ########################
<?php

class Test_lib {

  var $parameter1;
  var $parameter2;
  var $parameter3;

  public function __construct($parameters) {

    /* array assoc */
    $this->parameter1 = $parameters['argument1'];
    $this->parameter2 = $parameters['argument2'];
    $this->parameter3 = $parameters['argument3'];

    /* object */
    $oParameters = (object) $parameters;

    $this->parameter1 = $oParameters->argument1;
    $this->parameter2 = $oParameters->argument2;
    $this->parameter3 = $oParameters->argument3;

  }

}

类控制器

<?php

  class Test_cont extends CI_Controller {

    function __construct() {
      parent::__construct();
    }

    function test() {

      $data = array( // array assoc
        'argument1' => 'String 1',
        'argument2' => 'String 2',
        'argument3' => 'String 3'
      );

      $this->load->library("Test_lib", $data);

      return $this->Test_lib->parameter1;

    }

    echo $this->test(); // String 1

  }

只需要将**$params**从变量修改为数组即可。我希望这能奏效

function test()
{
    $params = array(1=>'abc');
    $this->load->library('test_lib',$params);
}