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<?php $a = [ [ 'ID' => 3, 'Username' => 'TomC', 'Project_Name' => 'Inventory' ], [ 'ID' => 4, 'Username' => 'JakeP', 'Project_Name' => 'Inventory' ], [ 'ID' => 2, 'Username' => 'TomC', 'Project_Name' => 'Stocks' ],[ 'ID' => 1, 'Username' => 'Tomc', 'Project_Name' => 'Stocks' ] ]; $b = array_unique( array_column($a, 'Username') ); print_r($b);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/jMEP2
function name:  (null)
number of ops:  13
compiled vars:  !0 = $a, !1 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, <array>
   25     1        INIT_FCALL                                               'array_unique'
   26     2        INIT_FCALL                                               'array_column'
          3        SEND_VAR                                                 !0
          4        SEND_VAL                                                 'Username'
          5        DO_ICALL                                         $3      
          6        SEND_VAR                                                 $3
          7        DO_ICALL                                         $4      
   25     8        ASSIGN                                                   !1, $4
   29     9        INIT_FCALL                                               'print_r'
         10        SEND_VAR                                                 !1
         11        DO_ICALL                                                 
         12      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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