会话不适用于MAMP

问题描述：

When i try to run my site on localhost i get an error:

Undefined index: log in ... on line 137

Within this file there is a line:

if (!$_SESSION['log']) { ...

Everything works on server, but not on localhost. What can I do to fix it?

当我尝试在localhost上运行我的网站时出现错误： p>

 未定义的索引：在第137行登录... 
  code>  pre> 
 
 在此文件中有一行： p> 
 
 
  if（！$ _ SESSION ['log']）{... 
  code>  pre> 
 
 一切都在服务器上运行，但不在localhost上运行。 我该怎么做才能解决它？ p> 
  div>

答

There is probably a difference between the level of error reporting between the server and your local setup.

If you want to check if the variable is set (assuming that a session has been started...), you should use:

if (!isset($_SESSION['log'])) {

Or if you want to check if it is not set and / or empty or false:

if (empty($_SESSION['log'])) {

Both will not generate any warnings for non-set variables or array indices.

答

It probably isn't working "on server," but is instead just not showing the error message to the page.

You can fix the warning re: the index by changing your if statement to this:

if (isset($_SESSION['log']) && !$_SESSION['log']) {

Or to whatever condition you need it to be.

会话不适用于MAMP

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