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<?php $arr = [3, "AA", [1,2], 444, ["V"]]; $a = @array_keys(array_flip($arr)); print_r($a);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/66L0O
function name:  (null)
number of ops:  14
compiled vars:  !0 = $arr, !1 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    4     1        BEGIN_SILENCE                                    ~3      
          2        INIT_FCALL                                               'array_keys'
          3        INIT_FCALL                                               'array_flip'
          4        SEND_VAR                                                 !0
          5        DO_ICALL                                         $4      
          6        SEND_VAR                                                 $4
          7        DO_ICALL                                         $5      
          8        END_SILENCE                                              ~3
          9        ASSIGN                                                   !1, $5
    5    10        INIT_FCALL                                               'print_r'
         11        SEND_VAR                                                 !1
         12        DO_ICALL                                                 
         13      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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