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<?php $foo = null; $bar = 'something'; $what = $foo ?? $bar ?? 'DEFAULT'; var_dump($what);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/IBj0p
function name:  (null)
number of ops:  11
compiled vars:  !0 = $foo, !1 = $bar, !2 = $what
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, null
    4     1        ASSIGN                                                   !1, 'something'
    6     2        COALESCE                                         ~5      !0
          3        COALESCE                                         ~6      !1
          4        QM_ASSIGN                                        ~6      'DEFAULT'
          5        QM_ASSIGN                                        ~5      ~6
          6        ASSIGN                                                   !2, ~5
    8     7        INIT_FCALL                                               'var_dump'
          8        SEND_VAR                                                 !2
          9        DO_ICALL                                                 
         10      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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