3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ($b ?? $c) ?? $d; echo $a;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/pEWk9
function name:  (null)
number of ops:  7
compiled vars:  !0 = $a, !1 = $b, !2 = $c, !3 = $d
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   COALESCE                                         ~4      !1
          1        QM_ASSIGN                                        ~4      !2
          2        COALESCE                                         ~5      ~4
          3        QM_ASSIGN                                        ~5      !3
          4        ASSIGN                                                   !0, ~5
    4     5        ECHO                                                     !0
    5     6      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
145.82 ms | 1005 KiB | 13 Q