3v4l.org

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

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
165.08 ms | 1396 KiB | 13 Q