关于CI教程中上传部分的问题请教
<?php/*constructor function to initialize controller and load the file upload class, plus the two other helpers it needs */
class Upload extends Controller {
function Upload()
{
parent::Controller();
$this->load->helper(array('form', 'url'));
$this->load->library('upload');
}
/*now the function which does all the work!*/
function do_upload()
{
if ( ! $this->upload->do_upload())
{
$error = array('error' =>
$this->upload->display_errors());
$this->load->view('upload_form', $error);
}
else
{
$data = array('upload_data' =>
$this->upload->data());
$this->load->view('upload_success', $data);
}
}
}
以上为从教程上复制过来的程序
请教：
if ( ! $this->upload->do_upload())
这一句会调用自身，自身的开始又是这一句，还是会再调用一次自身产生一个新的实例。我理解的会一直递归下去
调用自身是这样$this->do_upload(),$this->upload->do_upload()是调用upload类的do_upload()方法 一叶扁舟 发表于 2016-4-29 13:43
调用自身是这样$this->do_upload(),$this->upload->do_upload()是调用upload类的do_upload()方法 ...
是我没表达清楚，是调用do_upload方法;我就是想不明白方法定义中就是调用方法自己这不是递归嘛？
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