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

Generated using Vulcan Logic Dumper, using php 8.0.0


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