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<?php $arr = [0 => 23, 1 => 1, 2 => 22, 3=> 0]; var_dump($arr); asort($arr); var_dump($arr); $key = array_shift(array_keys($arr)); var_dump($key);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Gao0a
function name:  (null)
number of ops:  21
compiled vars:  !0 = $arr, !1 = $key
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, <array>
    3     1        INIT_FCALL                                               'var_dump'
          2        SEND_VAR                                                 !0
          3        DO_ICALL                                                 
    4     4        INIT_FCALL                                               'asort'
          5        SEND_REF                                                 !0
          6        DO_ICALL                                                 
    5     7        INIT_FCALL                                               'var_dump'
          8        SEND_VAR                                                 !0
          9        DO_ICALL                                                 
    6    10        INIT_FCALL                                               'array_shift'
         11        INIT_FCALL                                               'array_keys'
         12        SEND_VAR                                                 !0
         13        DO_ICALL                                         $6      
         14        SEND_VAR_NO_REF                               0          $6
         15        DO_ICALL                                         $7      
         16        ASSIGN                                                   !1, $7
    7    17        INIT_FCALL                                               'var_dump'
         18        SEND_VAR                                                 !1
         19        DO_ICALL                                                 
         20      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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