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<?php $arr = ["one", "two"]; $newItem = "three"; var_dump(array_combine($arr + [$newItem]));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/NQLE9
function name:  (null)
number of ops:  11
compiled vars:  !0 = $arr, !1 = $newItem
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    4     1        ASSIGN                                                   !1, 'three'
    6     2        INIT_FCALL                                               'var_dump'
          3        INIT_FCALL                                               'array_combine'
          4        INIT_ARRAY                                       ~4      !1
          5        ADD                                              ~5      !0, ~4
          6        SEND_VAL                                                 ~5
          7        DO_ICALL                                         $6      
          8        SEND_VAR                                                 $6
          9        DO_ICALL                                                 
         10      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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