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<?php $a = [['city' => 'A'],['city' => 'B'],['city' => 'C']]; print_r(array_column($a, 'city', 'city'));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/bCj7L
function name:  (null)
number of ops:  10
compiled vars:  !0 = $a
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, <array>
    5     1        INIT_FCALL                                                   'print_r'
          2        INIT_FCALL                                                   'array_column'
          3        SEND_VAR                                                     !0
          4        SEND_VAL                                                     'city'
          5        SEND_VAL                                                     'city'
          6        DO_ICALL                                             $2      
          7        SEND_VAR                                                     $2
          8        DO_ICALL                                                     
          9      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


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