Question

我想更改此代码示例，以便同时评估所有这些条件。如果多个条件为真，则可以将多个参数传递给“注册”函数。

我最初尝试使用switch，但每个条件都需要能够评估不同的条件。

任何有助于我指明正确方向的帮助都会很棒。

    if ($this->form_validation->run() == FALSE) {
        $this->signup();

    } else if ($this->membership_model->check_field('username',$this->input->post('username'))) {

        $this->signup("An account with the username you've entered already exists.");

    } else if ($this->membership_model->check_field('email_address',$this->input->post('email_address'))) {

        $this->signup("An account with the e-mail you've entered already exists.");

    }

Answer 1

您可以将所有错误/错误条件放入数组中并将其传递给$this->signup()。

if ($this->form_validation->run() == FALSE) {
    $this->signup();
} 
else 
{
   $errors = array();
   if ($this->membership_model->check_field('username',$this->input->post('username'))) 
       $errors[]= "An account with the username you've entered already exists.";
   if ($this->membership_model->check_field('email_address',$this->input->post('email_address')))
       $errors[]= "An account with the e-mail you've entered already exists.";

   $this->signup($errors);
}

Answer 2

使用＆amp;＆amp;操作

a = 1; b = 2; if（a == 1＆amp;＆amp; b == 2）{ 回声“这会出现在页面上”; }

使用PHP一次评估多个条件

2 个答案: