3v4l.org

run code in 300+ PHP versions simultaneously
<?php $foo; $bar = 2; echo($foo ?? $bar);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/2XBJ2
function name:  (null)
number of ops:  5
compiled vars:  !0 = $foo, !1 = $bar
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !1, 2
    4     1        COALESCE                                         ~3      !0
          2        QM_ASSIGN                                        ~3      !1
          3        ECHO                                                     ~3
          4      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
239.08 ms | 1392 KiB | 13 Q