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<?php $b = [ ['TEST' => '1'], ['TEST' => '2'], ['TEST' => '3'], ]; $a = array_column($b, '', 'TEST'); var_dump($a);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/ah4Mg
function name:  (null)
number of ops:  11
compiled vars:  !0 = $b, !1 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, <array>
    7     1        INIT_FCALL                                               'array_column'
          2        SEND_VAR                                                 !0
          3        SEND_VAL                                                 ''
          4        SEND_VAL                                                 'TEST'
          5        DO_ICALL                                         $3      
          6        ASSIGN                                                   !1, $3
    9     7        INIT_FCALL                                               'var_dump'
          8        SEND_VAR                                                 !1
          9        DO_ICALL                                                 
         10      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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