3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [ 'test' => 1 ]; $first_index = $array['test'] ?? '';
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/61HRF
function name:  (null)
number of ops:  6
compiled vars:  !0 = $array, !1 = $first_index
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    7     1        FETCH_DIM_IS                                     ~3      !0, 'test'
          2        COALESCE                                         ~4      ~3
          3        QM_ASSIGN                                        ~4      ''
          4        ASSIGN                                                   !1, ~4
          5      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
180.54 ms | 1392 KiB | 13 Q