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<?php var_dump('0' == '0'); var_dump('0' ?? '0' == '0'); var_dump(('0' ?? '0') == '0'); var_dump((null ?? "0") == '0'); var_dump(("1" ?? "0") == '0'); var_dump(($foo['bar'] ?? "0") == '0');
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/nIW9J
function name:  (null)
number of ops:  34
compiled vars:  !0 = $foo
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'var_dump'
          1        SEND_VAL                                                 <true>
          2        DO_ICALL                                                 
    4     3        INIT_FCALL                                               'var_dump'
          4        COALESCE                                         ~2      '0'
          5        QM_ASSIGN                                        ~2      <true>
          6        SEND_VAL                                                 ~2
          7        DO_ICALL                                                 
    5     8        INIT_FCALL                                               'var_dump'
          9        COALESCE                                         ~4      '0'
         10        QM_ASSIGN                                        ~4      '0'
         11        IS_EQUAL                                         ~5      ~4, '0'
         12        SEND_VAL                                                 ~5
         13        DO_ICALL                                                 
    6    14        INIT_FCALL                                               'var_dump'
         15        COALESCE                                         ~7      null
         16        QM_ASSIGN                                        ~7      '0'
         17        IS_EQUAL                                         ~8      ~7, '0'
         18        SEND_VAL                                                 ~8
         19        DO_ICALL                                                 
    7    20        INIT_FCALL                                               'var_dump'
         21        COALESCE                                         ~10     '1'
         22        QM_ASSIGN                                        ~10     '0'
         23        IS_EQUAL                                         ~11     ~10, '0'
         24        SEND_VAL                                                 ~11
         25        DO_ICALL                                                 
    8    26        INIT_FCALL                                               'var_dump'
         27        FETCH_DIM_IS                                     ~13     !0, 'bar'
         28        COALESCE                                         ~14     ~13
         29        QM_ASSIGN                                        ~14     '0'
         30        IS_EQUAL                                         ~15     ~14, '0'
         31        SEND_VAL                                                 ~15
         32        DO_ICALL                                                 
         33      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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