PHP warning Illegal offset type error solution

Source: Internet
Author: User
Tags yii

In a word, the object is used as the key of the array. For example, the following code triggers this warning:

The code is as follows: Copy code

$ Arr = array ();
  
Class
  
{
  
}
  
$ O = new;
  
Echo $ arr [$ o];


Specifically, I triggered this warning when I was working on a Yii multi-language site. I wrote:

The code is as follows: Copy code

Yii: app ()-> language = Yii: app ()-> request-> cookies ['Lang '];


The following error is reported:
The code is as follows: Copy code

$ This-> _ files [$ category] [$ language] = $ this-> basePath. DIRECTORY_SEPARATOR. $ language. DIRECTORY_SEPARATOR. $ category. '. Php ';
124}


Yii: app ()-> language = Yii: app ()-> request-> cookies ['Lang ']-> value;

The code is as follows:

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