虚函数实现php版-PHP源码

虚函数实现php版-PHP源码

1. virtual-function.php

Parent says $str
";    
  }    
 
}    
 
class ChildClass extends ParentClass {    
 
  static public function do_print( $str ) {    
    echo "
Child says $str
";    
  }    
 
}    
 
 
class AnotherChildClass extends ParentClass {    
 
  static public function do_print( $str ) {    
    echo "
AnotherChild says $str
";    
  }    
 
}    
 
echo phpversion();
 
$a=new ChildClass();
 
$a->say( 'Hello' );  
$b=new AnotherChildClass();
 
$b->say( 'Hello' );

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