Maison >développement back-end >tutoriel php >ci框架如何通过$this->load->library向自定义的类中的构造函数传参?
<code>class blog_lib{ var $CI; var $posts_path; var $file_ext='.md'; var $_all_posts; var $_all_tags; var $_all_pockets; public function __construct($pathselect) { if (!isset($this->CI)) { $this->CI =& get_instance(); } $this->posts_path = FCPATH.$pathselect; } </code>
控制器:
<code>public function index() { $this->load->library('blog_lib'); $data['config'] = $this->blog_config; $this->load->library('twig_lib'); $data['all_tags'] = $this->blog_lib->get_posts_tags(); $data['posts'] = $this->blog_lib->get_posts(); $this->twig_lib->render("index.html",$data); } </code>
如上我该如何向构造函数传参?
<code>class blog_lib{ var $CI; var $posts_path; var $file_ext='.md'; var $_all_posts; var $_all_tags; var $_all_pockets; public function __construct($pathselect) { if (!isset($this->CI)) { $this->CI =& get_instance(); } $this->posts_path = FCPATH.$pathselect; } </code>
控制器:
<code>public function index() { $this->load->library('blog_lib'); $data['config'] = $this->blog_config; $this->load->library('twig_lib'); $data['all_tags'] = $this->blog_lib->get_posts_tags(); $data['posts'] = $this->blog_lib->get_posts(); $this->twig_lib->render("index.html",$data); } </code>
如上我该如何向构造函数传参?
CI是可以往类的构造函数传递参数的,但是构造函数的接受参数时必须是一个数组:
<code>class blog_lib{ ... public function __construct($param){ ... $this->posts_path = FCPATH.$param['pathselect']; } ... } </code>
Controller 里面:
<code>$this->load->library('blog_lib',array('pathselect'=> 'xx')); </code>
如果觉得这种方式不好可以用另一个方式,就是在ci的自定义的class做一个虚拟的空类,然后在空类之后再定义一个真实的类,通过config/autoload.php 自动载入这个类,就可以new了,那个时候怎样传递都可以。
application/library/blog.php :
<code>//虚拟类 class blog{} // 真实类 class blog_lib { .... } </code>
config/autoload.php
<code>$autoload['libraries'] = array('blog'); </code>
Controller 里面:
<code>$oblog = new blog_lib($value); </code>