3v4l.org

run code in 300+ PHP versions simultaneously
<?php $l = new SPLDoublyLinkedList(); $l->setIteratorMode(SplDoublyLinkedList::IT_MODE_DELETE); $l->setIteratorMode(SplDoublyLinkedList::IT_MODE_LIFO); $mode = $l->getIteratorMode(); var_dump("MODE: $mode"); var_dump("MODE CHECKS"); var_dump(($mode & SplDoublyLinkedList::IT_MODE_LIFO) == SplDoublyLinkedList::IT_MODE_LIFO); var_dump(($mode & SplDoublyLinkedList::IT_MODE_FIFO) == SplDoublyLinkedList::IT_MODE_FIFO); var_dump(($mode & SplDoublyLinkedList::IT_MODE_DELETE) == SplDoublyLinkedList::IT_MODE_DELETE); var_dump(($mode & SplDoublyLinkedList::IT_MODE_KEEP) == SplDoublyLinkedList::IT_MODE_KEEP); $l->push('A'); $l->push('B'); $l->push('C'); $l->push('D'); $l->rewind(); var_dump("Traversing"); var_dump($l->isEmpty()); var_dump($l->count()); var_dump($l->current()); $l->next(); var_dump($l->count()); var_dump($l->current()); $l->next(); var_dump($l->count()); var_dump($l->current()); $l->next(); var_dump($l->count()); var_dump($l->current()); $l->next(); var_dump($l->count()); var_dump($l->isEmpty());
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/a3iFn
function name:  (null)
number of ops:  121
compiled vars:  !0 = $l, !1 = $mode
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   NEW                                              $2      'SPLDoublyLinkedList'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $2
    3     3        INIT_METHOD_CALL                                         !0, 'setIteratorMode'
          4        SEND_VAL_EX                                              1
          5        DO_FCALL                                      0          
    4     6        INIT_METHOD_CALL                                         !0, 'setIteratorMode'
          7        SEND_VAL_EX                                              2
          8        DO_FCALL                                      0          
    6     9        INIT_METHOD_CALL                                         !0, 'getIteratorMode'
         10        DO_FCALL                                      0  $7      
         11        ASSIGN                                                   !1, $7
    7    12        INIT_FCALL                                               'var_dump'
         13        NOP                                                      
         14        FAST_CONCAT                                      ~9      'MODE%3A+', !1
         15        SEND_VAL                                                 ~9
         16        DO_ICALL                                                 
    8    17        INIT_FCALL                                               'var_dump'
         18        SEND_VAL                                                 'MODE+CHECKS'
         19        DO_ICALL                                                 
    9    20        INIT_FCALL                                               'var_dump'
         21        BW_AND                                           ~12     !1, 2
         22        IS_EQUAL                                         ~13     ~12, 2
         23        SEND_VAL                                                 ~13
         24        DO_ICALL                                                 
   10    25        INIT_FCALL                                               'var_dump'
         26        BW_AND                                           ~15     !1, 0
         27        IS_EQUAL                                         ~16     ~15, 0
         28        SEND_VAL                                                 ~16
         29        DO_ICALL                                                 
   11    30        INIT_FCALL                                               'var_dump'
         31        BW_AND                                           ~18     !1, 1
         32        IS_EQUAL                                         ~19     ~18, 1
         33        SEND_VAL                                                 ~19
         34        DO_ICALL                                                 
   12    35        INIT_FCALL                                               'var_dump'
         36        BW_AND                                           ~21     !1, 0
         37        IS_EQUAL                                         ~22     ~21, 0
         38        SEND_VAL                                                 ~22
         39        DO_ICALL                                                 
   14    40        INIT_METHOD_CALL                                         !0, 'push'
         41        SEND_VAL_EX                                              'A'
         42        DO_FCALL                                      0          
   15    43        INIT_METHOD_CALL                                         !0, 'push'
         44        SEND_VAL_EX                                              'B'
         45        DO_FCALL                                      0          
   16    46        INIT_METHOD_CALL                                         !0, 'push'
         47        SEND_VAL_EX                                              'C'
         48        DO_FCALL                                      0          
   17    49        INIT_METHOD_CALL                                         !0, 'push'
         50        SEND_VAL_EX                                              'D'
         51        DO_FCALL                                      0          
   18    52        INIT_METHOD_CALL                                         !0, 'rewind'
         53        DO_FCALL                                      0          
   20    54        INIT_FCALL                                               'var_dump'
         55        SEND_VAL                                                 'Traversing'
         56        DO_ICALL                                                 
   21    57        INIT_FCALL                                               'var_dump'
         58        INIT_METHOD_CALL                                         !0, 'isEmpty'
         59        DO_FCALL                                      0  $30     
         60        SEND_VAR                                                 $30
         61        DO_ICALL                                                 
   23    62        INIT_FCALL                                               'var_dump'
         63        INIT_METHOD_CALL                                         !0, 'count'
         64        DO_FCALL                                      0  $32     
         65        SEND_VAR                                                 $32
         66        DO_ICALL                                                 
   24    67        INIT_FCALL                                               'var_dump'
         68        INIT_METHOD_CALL                                         !0, 'current'
         69        DO_FCALL                                      0  $34     
         70        SEND_VAR                                                 $34
         71        DO_ICALL                                                 
   25    72        INIT_METHOD_CALL                                         !0, 'next'
         73        DO_FCALL                                      0          
   27    74        INIT_FCALL                                               'var_dump'
         75        INIT_METHOD_CALL                                         !0, 'count'
         76        DO_FCALL                                      0  $37     
         77        SEND_VAR                                                 $37
         78        DO_ICALL                                                 
   28    79        INIT_FCALL                                               'var_dump'
         80        INIT_METHOD_CALL                                         !0, 'current'
         81        DO_FCALL                                      0  $39     
         82        SEND_VAR                                                 $39
         83        DO_ICALL                                                 
   29    84        INIT_METHOD_CALL                                         !0, 'next'
         85        DO_FCALL                                      0          
   31    86        INIT_FCALL                                               'var_dump'
         87        INIT_METHOD_CALL                                         !0, 'count'
         88        DO_FCALL                                      0  $42     
         89        SEND_VAR                                                 $42
         90        DO_ICALL                                                 
   32    91        INIT_FCALL                                               'var_dump'
         92        INIT_METHOD_CALL                                         !0, 'current'
         93        DO_FCALL                                      0  $44     
         94        SEND_VAR                                                 $44
         95        DO_ICALL                                                 
   33    96        INIT_METHOD_CALL                                         !0, 'next'
         97        DO_FCALL                                      0          
   35    98        INIT_FCALL                                               'var_dump'
         99        INIT_METHOD_CALL                                         !0, 'count'
        100        DO_FCALL                                      0  $47     
        101        SEND_VAR                                                 $47
        102        DO_ICALL                                                 
   36   103        INIT_FCALL                                               'var_dump'
        104        INIT_METHOD_CALL                                         !0, 'current'
        105        DO_FCALL                                      0  $49     
        106        SEND_VAR                                                 $49
        107        DO_ICALL                                                 
   37   108        INIT_METHOD_CALL                                         !0, 'next'
        109        DO_FCALL                                      0          
   39   110        INIT_FCALL                                               'var_dump'
        111        INIT_METHOD_CALL                                         !0, 'count'
        112        DO_FCALL                                      0  $52     
        113        SEND_VAR                                                 $52
        114        DO_ICALL                                                 
   40   115        INIT_FCALL                                               'var_dump'
        116        INIT_METHOD_CALL                                         !0, 'isEmpty'
        117        DO_FCALL                                      0  $54     
        118        SEND_VAR                                                 $54
        119        DO_ICALL                                                 
        120      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
154.78 ms | 1404 KiB | 15 Q