php - Extended class gets only initial value of parent's variable -

class myappclass {      protected $_config = array();      protected $_template = '';      public function init( ){         require_once('core_config.php'); // inside $_sc_config array of values         $this->_config = $_sc_config;         $this->_template = new template;         echo $this->_template->echo_base();      }  }  class template extends myappclass{      public function echo_base() {         var_dump($this->_config); // returns empty array      }  }  $myapp = new myappclass; $myapp->init(); 

what's wrong code above

var_dump($this->_config)

in template class returns empty array after init function?

thanks in advance.

i think don't object programming yet. in myappclass::init method create new object of template class extends myappclass class. have no idea want acheve show snippet works.

<?php class myappclass {      protected $_config = array();      protected $_template = '';      protected function init( ){         //require_once('core_config.php'); // inside $_sc_config array of values         $this->_config = 'foo';      }  }  class template extends myappclass{      public function __construct(){         $this->init();     }      public function echo_base() {         var_dump($this->_config); // returns empty array      }  }  $myapp = new template; $myapp->echo_base(); 

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