3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo "-- ArrayObject\n"; $iterator = (new ArrayObject([]))->getIterator(); var_dump($iterator->current()); var_dump($iterator->key()); echo "\n-- array\n"; $array = []; var_dump(current($array)); var_dump(key($array));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/JbXVc
function name:  (null)
number of ops:  32
compiled vars:  !0 = $iterator, !1 = $array
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ECHO                                                     '--+ArrayObject%0A'
    4     1        NEW                                              $2      'ArrayObject'
          2        SEND_VAL_EX                                              <array>
          3        DO_FCALL                                      0          
          4        INIT_METHOD_CALL                                         $2, 'getIterator'
          5        DO_FCALL                                      0  $4      
          6        ASSIGN                                                   !0, $4
    5     7        INIT_FCALL                                               'var_dump'
          8        INIT_METHOD_CALL                                         !0, 'current'
          9        DO_FCALL                                      0  $6      
         10        SEND_VAR                                                 $6
         11        DO_ICALL                                                 
    6    12        INIT_FCALL                                               'var_dump'
         13        INIT_METHOD_CALL                                         !0, 'key'
         14        DO_FCALL                                      0  $8      
         15        SEND_VAR                                                 $8
         16        DO_ICALL                                                 
    8    17        ECHO                                                     '%0A--+array%0A'
    9    18        ASSIGN                                                   !1, <array>
   10    19        INIT_FCALL                                               'var_dump'
         20        INIT_FCALL                                               'current'
         21        SEND_VAR                                                 !1
         22        DO_ICALL                                         $11     
         23        SEND_VAR                                                 $11
         24        DO_ICALL                                                 
   11    25        INIT_FCALL                                               'var_dump'
         26        INIT_FCALL                                               'key'
         27        SEND_VAR                                                 !1
         28        DO_ICALL                                         $13     
         29        SEND_VAR                                                 $13
         30        DO_ICALL                                                 
         31      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
136.18 ms | 1002 KiB | 16 Q