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<?php date_default_timezone_set('America/Los_Angeles'); class Test { public $previous, $next = NULL; public function __clone() { $this->previous != NULL ? $this->previous = clone $this->previous : $this->previous = NULL; $this->next != NULL ? $this->next = clone $this->next : $this->next = NULL; } public function __toString() { return '[' . ($this->previous != NULL ? '<' : '-') . ' ' . ($this->next != NULL ? '>' : '-') . ']'; } } // Create some test objects $a = new Test(); $b = new Test(); // Link them together $a->next =& $b; $b->previous =& $a; // Clone and print echo "a before cloning:\na: " . $a . "\n"; $b = clone $a; echo "These two should not look the same:\na: " . $a . "\nb: " . $clone . "\n";
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/aMjnT
function name:  (null)
number of ops:  25
compiled vars:  !0 = $a, !1 = $b, !2 = $clone
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL                                               'date_default_timezone_set'
          1        SEND_VAL                                                 'America%2FLos_Angeles'
          2        DO_ICALL                                                 
    3     3        DECLARE_CLASS                                            'test'
   15     4        NEW                                              $4      'Test'
          5        DO_FCALL                                      0          
          6        ASSIGN                                                   !0, $4
          7        NEW                                              $7      'Test'
          8        DO_FCALL                                      0          
          9        ASSIGN                                                   !1, $7
   18    10        ASSIGN_OBJ_REF                                           !0, 'next'
         11        OP_DATA                                                  !1
         12        ASSIGN_OBJ_REF                                           !1, 'previous'
         13        OP_DATA                                                  !0
   21    14        CONCAT                                           ~12     'a+before+cloning%3A%0Aa%3A+', !0
         15        CONCAT                                           ~13     ~12, '%0A'
         16        ECHO                                                     ~13
   22    17        CLONE                                            ~14     !0
         18        ASSIGN                                                   !1, ~14
   23    19        CONCAT                                           ~16     'These+two+should+not+look+the+same%3A%0Aa%3A+', !0
         20        CONCAT                                           ~17     ~16, '%0Ab%3A+'
         21        CONCAT                                           ~18     ~17, !2
         22        CONCAT                                           ~19     ~18, '%0A'
         23        ECHO                                                     ~19
         24      > RETURN                                                   1

Class Test:
Function __clone:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 3, Position 2 = 9
Branch analysis from position: 3
1 jumps found. (Code = 42) Position 1 = 12
Branch analysis from position: 12
2 jumps found. (Code = 43) Position 1 = 16, Position 2 = 22
Branch analysis from position: 16
1 jumps found. (Code = 42) Position 1 = 25
Branch analysis from position: 25
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 22
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 9
2 jumps found. (Code = 43) Position 1 = 16, Position 2 = 22
Branch analysis from position: 16
Branch analysis from position: 22
filename:       /in/aMjnT
function name:  __clone
number of ops:  27
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    6     0  E >   FETCH_OBJ_R                                      ~0      'previous'
          1        IS_NOT_EQUAL                                             ~0, null
          2      > JMPZ                                                     ~1, ->9
          3    >   FETCH_OBJ_R                                      ~3      'previous'
          4        CLONE                                            ~4      ~3
          5        ASSIGN_OBJ                                       ~2      'previous'
          6        OP_DATA                                                  ~4
          7        QM_ASSIGN                                        ~5      ~2
          8      > JMP                                                      ->12
          9    >   ASSIGN_OBJ                                       ~6      'previous'
         10        OP_DATA                                                  null
         11        QM_ASSIGN                                        ~5      ~6
         12    >   FREE                                                     ~5
    7    13        FETCH_OBJ_R                                      ~7      'next'
         14        IS_NOT_EQUAL                                             ~7, null
         15      > JMPZ                                                     ~8, ->22
         16    >   FETCH_OBJ_R                                      ~10     'next'
         17        CLONE                                            ~11     ~10
         18        ASSIGN_OBJ                                       ~9      'next'
         19        OP_DATA                                                  ~11
         20        QM_ASSIGN                                        ~12     ~9
         21      > JMP                                                      ->25
         22    >   ASSIGN_OBJ                                       ~13     'next'
         23        OP_DATA                                                  null
         24        QM_ASSIGN                                        ~12     ~13
         25    >   FREE                                                     ~12
    8    26      > RETURN                                                   null

End of function __clone

Function __tostring:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 3, Position 2 = 5
Branch analysis from position: 3
1 jumps found. (Code = 42) Position 1 = 6
Branch analysis from position: 6
2 jumps found. (Code = 43) Position 1 = 11, Position 2 = 13
Branch analysis from position: 11
1 jumps found. (Code = 42) Position 1 = 14
Branch analysis from position: 14
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 13
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 5
2 jumps found. (Code = 43) Position 1 = 11, Position 2 = 13
Branch analysis from position: 11
Branch analysis from position: 13
filename:       /in/aMjnT
function name:  __toString
number of ops:  20
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   10     0  E >   FETCH_OBJ_R                                      ~0      'previous'
          1        IS_NOT_EQUAL                                             ~0, null
          2      > JMPZ                                                     ~1, ->5
          3    >   QM_ASSIGN                                        ~2      '%3C'
          4      > JMP                                                      ->6
          5    >   QM_ASSIGN                                        ~2      '-'
          6    >   CONCAT                                           ~3      '%5B', ~2
          7        CONCAT                                           ~4      ~3, '+'
          8        FETCH_OBJ_R                                      ~5      'next'
          9        IS_NOT_EQUAL                                             ~5, null
         10      > JMPZ                                                     ~6, ->13
         11    >   QM_ASSIGN                                        ~7      '%3E'
         12      > JMP                                                      ->14
         13    >   QM_ASSIGN                                        ~7      '-'
         14    >   CONCAT                                           ~8      ~4, ~7
         15        CONCAT                                           ~9      ~8, '%5D'
         16        VERIFY_RETURN_TYPE                                       ~9
         17      > RETURN                                                   ~9
   11    18*       VERIFY_RETURN_TYPE                                       
         19*     > RETURN                                                   null

End of function __tostring

End of class Test.

Generated using Vulcan Logic Dumper, using php 8.0.0


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