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<?php class X { public static function test(X $x) { var_dump($x); if (version_compare(PHP_VERSION, '8.1') >= 0) { var_dump(serialize($x)); } } } class Y extends X { private $value = 1; private function __debugInfo() { return array('value' => $this->value); } private function __sleep() { return array('value'); } private function __destruct() {} } X::test(new X()); X::test(new Y());
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/bKijA
function name:  (null)
number of ops:  11
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   26     0  E >   INIT_STATIC_METHOD_CALL                                      'X', 'test'
          1        NEW                                                  $0      'X'
          2        DO_FCALL                                          0          
          3        SEND_VAR                                                     $0
          4        DO_FCALL                                          0          
   27     5        INIT_STATIC_METHOD_CALL                                      'X', 'test'
          6        NEW                                                  $3      'Y'
          7        DO_FCALL                                          0          
          8        SEND_VAR                                                     $3
          9        DO_FCALL                                          0          
         10      > RETURN                                                       1

Class X:
Function test:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 10, Position 2 = 16
Branch analysis from position: 10
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 16
filename:       /in/bKijA
function name:  test
number of ops:  17
compiled vars:  !0 = $x
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    4     0  E >   RECV                                                 !0      
    5     1        INIT_FCALL                                                   'var_dump'
          2        SEND_VAR                                                     !0
          3        DO_ICALL                                                     
    6     4        INIT_FCALL                                                   'version_compare'
          5        SEND_VAL                                                     '8.5.0'
          6        SEND_VAL                                                     '8.1'
          7        DO_ICALL                                             $2      
          8        IS_SMALLER_OR_EQUAL                                          0, $2
          9      > JMPZ                                                         ~3, ->16
    7    10    >   INIT_FCALL                                                   'var_dump'
         11        INIT_FCALL                                                   'serialize'
         12        SEND_VAR                                                     !0
         13        DO_ICALL                                             $4      
         14        SEND_VAR                                                     $4
         15        DO_ICALL                                                     
    9    16    > > RETURN                                                       null

End of function test

End of class X.

Class Y:
Function __debuginfo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/bKijA
function name:  __debugInfo
number of ops:  4
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   16     0  E >   FETCH_OBJ_R                                          ~0      'value'
          1        INIT_ARRAY                                           ~1      ~0, 'value'
          2      > RETURN                                                       ~1
   17     3*     > RETURN                                                       null

End of function __debuginfo

Function __sleep:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/bKijA
function name:  __sleep
number of ops:  2
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   20     0  E > > RETURN                                                       <array>
   21     1*     > RETURN                                                       null

End of function __sleep

Function __destruct:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/bKijA
function name:  __destruct
number of ops:  1
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   23     0  E > > RETURN                                                       null

End of function __destruct

Function test:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 10, Position 2 = 16
Branch analysis from position: 10
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 16
filename:       /in/bKijA
function name:  test
number of ops:  17
compiled vars:  !0 = $x
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    4     0  E >   RECV                                                 !0      
    5     1        INIT_FCALL                                                   'var_dump'
          2        SEND_VAR                                                     !0
          3        DO_ICALL                                                     
    6     4        INIT_FCALL                                                   'version_compare'
          5        SEND_VAL                                                     '8.5.0'
          6        SEND_VAL                                                     '8.1'
          7        DO_ICALL                                             $2      
          8        IS_SMALLER_OR_EQUAL                                          0, $2
          9      > JMPZ                                                         ~3, ->16
    7    10    >   INIT_FCALL                                                   'var_dump'
         11        INIT_FCALL                                                   'serialize'
         12        SEND_VAR                                                     !0
         13        DO_ICALL                                             $4      
         14        SEND_VAR                                                     $4
         15        DO_ICALL                                                     
    9    16    > > RETURN                                                       null

End of function test

End of class Y.

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