3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump($b ?? ($c ?? 1)); // 1
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/XhOBP
function name:  (null)
number of ops:  8
compiled vars:  !0 = $b, !1 = $c
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'var_dump'
          1        COALESCE                                         ~2      !0
          2        COALESCE                                         ~3      !1
          3        QM_ASSIGN                                        ~3      1
          4        QM_ASSIGN                                        ~2      ~3
          5        SEND_VAL                                                 ~2
          6        DO_ICALL                                                 
          7      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
169.32 ms | 1393 KiB | 15 Q