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<?php abstract class A { public static function test($classname) { return $classname::$variable; } } class B extends A { public static $variable = 'BBB'; } echo B::test('B');
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/O57qL
function name:  (null)
number of ops:  5
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   11     0  E >   INIT_STATIC_METHOD_CALL                                  'B', 'test'
          1        SEND_VAL                                                 'B'
          2        DO_FCALL                                      0  $0      
          3        ECHO                                                     $0
          4      > RETURN                                                   1

Class A:
Function test:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/O57qL
function name:  test
number of ops:  5
compiled vars:  !0 = $classname
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   RECV                                             !0      
    4     1        FETCH_CLASS                                   0  $1      !0
          2        FETCH_STATIC_PROP_R          unknown             ~2      'variable'
          3      > RETURN                                                   ~2
    5     4*     > RETURN                                                   null

End of function test

End of class A.

Class B:
Function test:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/O57qL
function name:  test
number of ops:  5
compiled vars:  !0 = $classname
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   RECV                                             !0      
    4     1        FETCH_CLASS                                   0  $1      !0
          2        FETCH_STATIC_PROP_R          unknown             ~2      'variable'
          3      > RETURN                                                   ~2
    5     4*     > RETURN                                                   null

End of function test

End of class B.

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