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<?php $foo = 0; $bar = function() use (&$foo) { return ++ $foo; }; var_dump($bar() ?? $bar() ?? $bar(), $foo );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/4qLPu
function name:  (null)
number of ops:  19
compiled vars:  !0 = $foo, !1 = $bar
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 0
    3     1        DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2F4qLPu%3A3%240'
          2        BIND_LEXICAL                                             ~3, !0
          3        ASSIGN                                                   !1, ~3
    4     4        INIT_FCALL                                               'var_dump'
          5        INIT_DYNAMIC_CALL                                        !1
          6        DO_FCALL                                      0  $5      
          7        COALESCE                                         ~6      $5
          8        INIT_DYNAMIC_CALL                                        !1
          9        DO_FCALL                                      0  $7      
         10        COALESCE                                         ~8      $7
         11        INIT_DYNAMIC_CALL                                        !1
         12        DO_FCALL                                      0  $9      
         13        QM_ASSIGN                                        ~8      $9
         14        QM_ASSIGN                                        ~6      ~8
         15        SEND_VAL                                                 ~6
         16        SEND_VAR                                                 !0
         17        DO_ICALL                                                 
         18      > RETURN                                                   1

Function %00%7Bclosure%7D%2Fin%2F4qLPu%3A3%240:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/4qLPu
function name:  {closure}
number of ops:  4
compiled vars:  !0 = $foo
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   BIND_STATIC                                              !0
          1        PRE_INC                                          ~1      !0
          2      > RETURN                                                   ~1
          3*     > RETURN                                                   null

End of function %00%7Bclosure%7D%2Fin%2F4qLPu%3A3%240

Generated using Vulcan Logic Dumper, using php 8.0.0


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