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<?php // пример от Максима Иванова error_reporting( E_ERROR ); function foo(){}; // return void $arr = [1, 2, 3]; echo (false ?? "Next step !") . " | "; // true echo (NULL ?? "Next step !") . " | "; // Next step ! echo ("" ?? "Next step !") . " | "; // true echo (0 ?? "Next step !") . " | "; // 0 echo (foo() ?? "Next step !") . " | "; // Next step ! echo ($arr ?? "Next step !") . " | "; // Array echo ($arr[1] ?? "Next step !") . " | "; // 2
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/kqgib
function name:  (null)
number of ops:  36
compiled vars:  !0 = $arr
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    4     0  E >   INIT_FCALL                                                   'error_reporting'
          1        SEND_VAL                                                     1
          2        DO_ICALL                                                     
    7     3        ASSIGN                                                       !0, <array>
    9     4        COALESCE                                             ~3      <false>
          5        QM_ASSIGN                                            ~3      'Next+step+%21'
          6        CONCAT                                               ~4      ~3, '+%7C+'
          7        ECHO                                                         ~4
   10     8        COALESCE                                             ~5      null
          9        QM_ASSIGN                                            ~5      'Next+step+%21'
         10        CONCAT                                               ~6      ~5, '+%7C+'
         11        ECHO                                                         ~6
   11    12        COALESCE                                             ~7      ''
         13        QM_ASSIGN                                            ~7      'Next+step+%21'
         14        CONCAT                                               ~8      ~7, '+%7C+'
         15        ECHO                                                         ~8
   12    16        COALESCE                                             ~9      0
         17        QM_ASSIGN                                            ~9      'Next+step+%21'
         18        CONCAT                                               ~10     ~9, '+%7C+'
         19        ECHO                                                         ~10
   13    20        INIT_FCALL                                                   'foo'
         21        DO_FCALL                                          0  $11     
         22        COALESCE                                             ~12     $11
         23        QM_ASSIGN                                            ~12     'Next+step+%21'
         24        CONCAT                                               ~13     ~12, '+%7C+'
         25        ECHO                                                         ~13
   14    26        COALESCE                                             ~14     !0
         27        QM_ASSIGN                                            ~14     'Next+step+%21'
         28        CONCAT                                               ~15     ~14, '+%7C+'
         29        ECHO                                                         ~15
   15    30        FETCH_DIM_IS                                         ~16     !0, 1
         31        COALESCE                                             ~17     ~16
         32        QM_ASSIGN                                            ~17     'Next+step+%21'
         33        CONCAT                                               ~18     ~17, '+%7C+'
         34        ECHO                                                         ~18
         35      > RETURN                                                       1

Function foo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/kqgib
function name:  foo
number of ops:  1
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    6     0  E > > RETURN                                                       null

End of function foo

Generated using Vulcan Logic Dumper, using php 8.5.0


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