php - Warning: Attempt to assign property of non-object, but the Object exists -

this class:

class network {     protected $value = null;     protected $properties = array();     public $type = null;      function __construct($value = null, $type = null) {         $this->value = $value;         $this->type = $type;     }      public function __set($name, $value) {         if(isset($this->{$name})) {             $this->{$name} = $value;         } else {             $this->properties[$name] = new self($value, null);         }     }      public function __get($name) {         return $this->properties[$name]->value;     }      public function __tostring() {         return $this->value;     } } 

this trying do:

$networks = new \stdclass(); $networks->test= new \orange_post\network('test'); $networks->test->enabled = true; $networks->test->enabled->type = 'boolean'; 

but error:

warning: attempt assign property of non-object on last line, $networks->test->enabled->type = 'boolean';

this first attempt @ branching out , doing this, , can't figure out doing incorrectly.

so going on here?

$networks = new \stdclass(); $networks->test= new \orange_post\network('test'); $networks->test->enabled = true; $networks->test->enabled->type = 'boolean';  ↑         ↑     ↑        ↑ tries access property of value ('true')  |         |     | 'enabled' property never exists       |         | property instance of '\orange_post\network'  | instance of '\stdclass' 

first off, when try assign true property enabled. __set() gets called, since property doesn't exists.

public function __set($name, $value) {     if(isset($this->{$name})) {         $this->{$name} = $value;     } else {         $this->properties[$name] = new self($value, null);     } } 

in magic method assign new instace of class property array properties , use name (enabled) index.

$networks->test->enabled->type = 'boolean'; 

after try set property type property enabled. here __get gets invoked.

public function __get($name) {     return $this->properties[$name]->value; } 

so return array value of properties , return property value of it. , property value not object. remove ->value part , code return object.

in other words last line:

$networks->test->enabled->type = 'boolean'; 

becomes:

$networks->test->properties["enabled"]->value->type = 'boolean';                  ↑                      ↑ causing problem                  | holds object      | holds 'true' property value