php - Script Scope Access -

so, i've been working on small project, nothing extensive. i've been having trouble understand why function in anonymous object isn't accessible on main script.

alright "initializer", or script loaded before crucial operations, instantiates anonymous object accessed across entire scope of project.

<?php      class t_empty {         public function __call($method, $args) {             if(isset($this->$method) && is_callable($this->$method)) {                 return call_user_func_array(                     $this->$method,                      $args                 );             }         }     }      $scope = new t_empty;      $scope->config = array(         'path' => $_server['document_root'],         'loct' => '*'     );         set_include_path ( $scope->config['path'] );      $scope->controller = $scope->service = $scope->service->injector = new t_empty;         // #    instantiate our empty structures     $scope->service->injector->inject = function($rsc) {         global $scope;         if( is_array( $rsc ) && count( $rsc ) >= 1 ):             foreach( $rsc $r ):                 require_once( $scope->config['path'] . '/api/services/' . $r . '.php' );             endforeach;         else:             require_once( $scope->config['path'] . '/api/services/' . $rsc . '.php' );         endif;     };     $scope->service->injector->f = "foobar"; 

the issue standing, after importing main script via

require_once 

i cannot access 'inject' function.

global $scope; $f = & $scope->service->injector; $f->inject( 'communicator' ); // # function marked undefined echo $f->f; // element exists 

the function whatever reason undefined, can access 'f' without trouble.

the problem $scope->service doesn't have injector property. chained assignment initializes $scope->service->injector isn't doing think, because assignments associate right left. so

$scope->controller = $scope->service = $scope->service->injector = new t_empty; 

is executed if it's

$temp1 = $scope->service->injector = new t_empty; $temp2 = $scope->service = $temp1; $scope->controller = $temp2; 

the assignment $scope->service overwrites $scope->service object created implicitly assignment $scope->service->injector new t_empty instance, , doesn't have injector property.

the other problem chained assignment you're setting them same t_empty instance (objects aren't copied when they're assigned, arrays are), not wanted. change line to:

$scope->controller = new t_empty; $scope->service = new t_empty; $scope->service->injector = new t_empty;