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<?php $array = [1, 2, 3, 4, 5, 6, 7, 8, 9]; var_export( array_map( fn($v) => implode(', ', $v), array_chunk($array, 4) ) );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/vmFfE
function name:  (null)
number of ops:  14
compiled vars:  !0 = $array
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, <array>
    5     1        INIT_FCALL                                                   'var_export'
    6     2        INIT_FCALL                                                   'array_map'
    7     3        DECLARE_LAMBDA_FUNCTION                              ~2      [0]
          4        SEND_VAL                                                     ~2
    8     5        INIT_FCALL                                                   'array_chunk'
          6        SEND_VAR                                                     !0
          7        SEND_VAL                                                     4
          8        DO_ICALL                                             $3      
          9        SEND_VAR                                                     $3
    6    10        DO_ICALL                                             $4      
    8    11        SEND_VAR                                                     $4
    5    12        DO_ICALL                                                     
   10    13      > RETURN                                                       1


Dynamic Functions:
Dynamic Function 0
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/vmFfE
function name:  {closure:/in/vmFfE:7}
number of ops:  4
compiled vars:  !0 = $v
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    7     0  E >   RECV                                                 !0      
          1        FRAMELESS_ICALL_2                implode             ~1      '%2C+', !0
          2      > RETURN                                                       ~1
          3*     > RETURN                                                       null

End of Dynamic Function 0

Generated using Vulcan Logic Dumper, using php 8.5.0


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