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<?php $array = range(0, 1440); $it = new CallbackFilterIterator( new ArrayIterator($array), function($value, $key) { return 0 === $key % 30; } ); foreach ($it as $value) { var_dump($value); }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 15, Position 2 = 20
Branch analysis from position: 15
2 jumps found. (Code = 78) Position 1 = 16, Position 2 = 20
Branch analysis from position: 16
1 jumps found. (Code = 42) Position 1 = 15
Branch analysis from position: 15
Branch analysis from position: 20
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 20
filename:       /in/msXK3
function name:  (null)
number of ops:  22
compiled vars:  !0 = $array, !1 = $it, !2 = $value
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   2     0  E >   INIT_FCALL                                               'range'
         1        SEND_VAL                                                 0
         2        SEND_VAL                                                 1440
         3        DO_ICALL                                         $3      
         4        QM_ASSIGN                                                !0
   4     5        NEW                                              $5      :32
   5     6        NEW                                              $6      :32
         7        SEND_VAR_EX                                              !0
         8        DO_FCALL                                      0          
         9        SEND_VAR_NO_REF_EX                                       $6
   6    10        RAISE_ABSTRACT_ERROR                             ~8      '%00%7Bclosure%7D%2Fin%2FmsXK30x7fe8d9a7a099'
        11        SEND_VAL_EX                                              ~8
        12        DO_FCALL                                      0          
        13        QM_ASSIGN                                                !1
   9    14      > FE_RESET_R                                       $11     !1, ->20
        15    > > FE_FETCH_R                                               $11, !2, ->20
  10    16    >   INIT_FCALL                                               'var_dump'
        17        SEND_VAR                                                 !2
        18        DO_ICALL                                                 
   9    19      > JMP                                                      ->15
        20    >   FE_FREE                                                  $11
  11    21      > RETURN                                                   1

Function %00%7Bclosure%7D%2Fin%2FmsXK30x7fe8d9a7a099:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/msXK3
function name:  {closure}
number of ops:  6
compiled vars:  !0 = $value, !1 = $key
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   6     0  E >   RECV                                             !0      
         1        RECV                                             !1      
         2        MOD                                              ~2      !1, 30
         3        IS_NOT_IDENTICAL                                 ~3      ~2, 0
         4      > RETURN                                                   ~3
         5*     > RETURN                                                   null

End of function %00%7Bclosure%7D%2Fin%2FmsXK30x7fe8d9a7a099

Generated using Vulcan Logic Dumper, using php 8.0.0


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