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<?php $a = ['a' => [1,2,3], 'b' => [4,5,6], 'c' => [7,8,9]]; var_dump( array_slice($a, 0, 2) + ['xxx' => [10,11,12]] + array_slice($a, 2, count($a) - 2) );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/5PLpU
function name:  (null)
number of ops:  19
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    4     1        INIT_FCALL                                               'var_dump'
    5     2        INIT_FCALL                                               'array_slice'
          3        SEND_VAR                                                 !0
          4        SEND_VAL                                                 0
          5        SEND_VAL                                                 2
          6        DO_ICALL                                         $2      
          7        ADD                                              ~3      $2, <array>
          8        INIT_FCALL                                               'array_slice'
          9        SEND_VAR                                                 !0
         10        SEND_VAL                                                 2
         11        COUNT                                            ~4      !0
         12        SUB                                              ~5      ~4, 2
         13        SEND_VAL                                                 ~5
         14        DO_ICALL                                         $6      
         15        ADD                                              ~7      ~3, $6
         16        SEND_VAL                                                 ~7
         17        DO_ICALL                                                 
    6    18      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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