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<?php class InCommon { private $baz = 'foo'; public function out($pref){ echo "\n".$pref.'::$baz = '.$this->baz; } } class Foo extends InCommon { public function peek($target, $pref){ echo "\n".'peek @'.$pref.'::$baz = '.$target->baz; } } class Bar extends InCommon { public function peek($target, $pref){ echo "\n".'peek @'.$pref.'::$baz = '.$target->baz; } public function mess($target){ $target->baz = 'cats'; } } $foo = new Foo(); $bar = new Bar(); $bar->mess($foo); // bar messes with Foo's $baz, which should be private $foo->out('Foo'); // Foo's internal $baz remains unchanged $bar->peek($foo, 'Foo'); // however, bar continues to see its modification to Foo::$baz $foo->peek($bar, 'Bar'); // Foo tries the same thing, but it sees nothing of Bar::$baz -- which it shouldn't
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/B2025
function name:  (null)
number of ops:  21
compiled vars:  !0 = $foo, !1 = $bar
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   20     0  E >   NEW                                              $2      'Foo'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $2
   21     3        NEW                                              $5      'Bar'
          4        DO_FCALL                                      0          
          5        ASSIGN                                                   !1, $5
   23     6        INIT_METHOD_CALL                                         !1, 'mess'
          7        SEND_VAR_EX                                              !0
          8        DO_FCALL                                      0          
   24     9        INIT_METHOD_CALL                                         !0, 'out'
         10        SEND_VAL_EX                                              'Foo'
         11        DO_FCALL                                      0          
   26    12        INIT_METHOD_CALL                                         !1, 'peek'
         13        SEND_VAR_EX                                              !0
         14        SEND_VAL_EX                                              'Foo'
         15        DO_FCALL                                      0          
   27    16        INIT_METHOD_CALL                                         !0, 'peek'
         17        SEND_VAR_EX                                              !1
         18        SEND_VAL_EX                                              'Bar'
         19        DO_FCALL                                      0          
         20      > RETURN                                                   1

Class InCommon:
Function out:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/B2025
function name:  out
number of ops:  7
compiled vars:  !0 = $pref
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   RECV                                             !0      
    5     1        CONCAT                                           ~1      '%0A', !0
          2        CONCAT                                           ~2      ~1, '%3A%3A%24baz+%3D+'
          3        FETCH_OBJ_R                                      ~3      'baz'
          4        CONCAT                                           ~4      ~2, ~3
          5        ECHO                                                     ~4
    6     6      > RETURN                                                   null

End of function out

End of class InCommon.

Class Foo:
Function peek:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/B2025
function name:  peek
number of ops:  8
compiled vars:  !0 = $target, !1 = $pref
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   10     0  E >   RECV                                             !0      
          1        RECV                                             !1      
          2        CONCAT                                           ~2      '%0Apeek+%40', !1
          3        CONCAT                                           ~3      ~2, '%3A%3A%24baz+%3D+'
          4        FETCH_OBJ_R                                      ~4      !0, 'baz'
          5        CONCAT                                           ~5      ~3, ~4
          6        ECHO                                                     ~5
          7      > RETURN                                                   null

End of function peek

Function out:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/B2025
function name:  out
number of ops:  7
compiled vars:  !0 = $pref
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   RECV                                             !0      
    5     1        CONCAT                                           ~1      '%0A', !0
          2        CONCAT                                           ~2      ~1, '%3A%3A%24baz+%3D+'
          3        FETCH_OBJ_R                                      ~3      'baz'
          4        CONCAT                                           ~4      ~2, ~3
          5        ECHO                                                     ~4
    6     6      > RETURN                                                   null

End of function out

End of class Foo.

Class Bar:
Function peek:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/B2025
function name:  peek
number of ops:  8
compiled vars:  !0 = $target, !1 = $pref
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   13     0  E >   RECV                                             !0      
          1        RECV                                             !1      
   14     2        CONCAT                                           ~2      '%0Apeek+%40', !1
          3        CONCAT                                           ~3      ~2, '%3A%3A%24baz+%3D+'
          4        FETCH_OBJ_R                                      ~4      !0, 'baz'
          5        CONCAT                                           ~5      ~3, ~4
          6        ECHO                                                     ~5
   15     7      > RETURN                                                   null

End of function peek

Function mess:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/B2025
function name:  mess
number of ops:  4
compiled vars:  !0 = $target
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   16     0  E >   RECV                                             !0      
   17     1        ASSIGN_OBJ                                               !0, 'baz'
          2        OP_DATA                                                  'cats'
   18     3      > RETURN                                                   null

End of function mess

Function out:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/B2025
function name:  out
number of ops:  7
compiled vars:  !0 = $pref
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   RECV                                             !0      
    5     1        CONCAT                                           ~1      '%0A', !0
          2        CONCAT                                           ~2      ~1, '%3A%3A%24baz+%3D+'
          3        FETCH_OBJ_R                                      ~3      'baz'
          4        CONCAT                                           ~4      ~2, ~3
          5        ECHO                                                     ~4
    6     6      > RETURN                                                   null

End of function out

End of class Bar.

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