3v4l.org

run code in 500+ PHP versions simultaneously
<?php $events = [ [ 'categoryId' => 1, 'eventId' => 2, 'eventName' => 3, 'vendorName' => 4 ], [ 'categoryId' => 5, 'eventId' => 6, 'eventName' => 7, 'vendorName' => 8 ], [ 'categoryId' => 9, 'eventId' => 10, 'eventName' => 11, 'vendorName' => 12 ], ]; print_r(array_column($events, 'categoryId'));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/WbSgJ
function name:  (null)
number of ops:  9
compiled vars:  !0 = $events
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, <array>
    9     1        INIT_FCALL                                                   'print_r'
          2        INIT_FCALL                                                   'array_column'
          3        SEND_VAR                                                     !0
          4        SEND_VAL                                                     'categoryId'
          5        DO_ICALL                                             $2      
          6        SEND_VAR                                                     $2
          7        DO_ICALL                                                     
          8      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


preferences:
159.68 ms | 2256 KiB | 15 Q