私は、基本クラスで親funcitonを呼び出すが、何も

Question

class ajay{ 
    function test(){ 
     return "sandeep"; 
    } 
} 

class Sandeep extends ajay{ 
    function testing(){ 
     parent::test(); 
    } 
} 
$objct = new Sandeep();echo $objct->testing(); 

Answer 1

を返していないあなたはtesting()方法でreturnを忘れてしまっています：

class ajay { 
    function test(){ 
     return "sandeep"; 
    } 
} 

class Sandeep extends ajay{ 
    function testing(){ 
     return parent::test(); 
    } 
} 

Answer 2

There is no return data in testing function 

<?php 
class ajay{ 
    function test(){ 
     return "sandeep"; 
    } 
} 

class Sandeep extends ajay{ 
    function testing(){ 
     $data = parent::test(); 
     return $data; 
    } 
} 
$objct = new Sandeep(); 
echo $objct->testing(); 
?>