PHP数组转换为JSON：尝试获取非对象错误的属性

Question

I'm getting "trying to get a property of a non-object" when I'm trying to get values from an array I converted to JSON.

Snippet of Utils.php :

class Utils {

    public $config;

    public function __construct($config) {
        $this->config = json_decode(json_encode($config));
    }

Snippet of System.php :

require_once("Utils.php");
class System extends Utils {
// a bunch of functions
public function bind($port) {
// stuff
$this->writeOutput("Host: {$this->config->MySQL->Host}");

Snippet of Game.php :

require_once("Config.php");
$utils = new Utils($config);

What Config.php is a bit like:

$config = array(

"array" => array(
    "Key" => "Value", 
    "Key2" => "Value"
),

"anotherarray" => array(
    "AnotherKey" => "AnotherValue", 
    "ItsAnArray" => array("key" => "value"),
),

);

It's saying the errors are with every use of $this->config in System.php. What am I doing wrong?

Answer 1

You can convert the $config parameter in constructor by using

public function __construct($config) {
    $this->config = (object) $config;
}

But, remember: converting array into a object is not recursively. So, you'll have to access the property using this:

$util = new Util($config);

print_r($util->config->array['key']);

As the question still in the same error, try using this:

require_once("Utils.php");
class System extends Utils {

   public function __construct($config){
      parent::__construct($config);
   }

   // a bunch of functions
   public function bind($port) {
      // stuff
      $this->writeOutput("Host: {$this->config->MySQL->Host}");
   }
}

$v = new System($array);