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<?php $a = 'foo'; $b = false; var_dump($a ==!$b); var_dump($a == (!$b)); var_dump($a !== $b); $a = false; $b = false; var_dump($a ==!$b); var_dump($a == (!$b)); var_dump($a !== $b);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/JOTF8
function name:  (null)
number of ops:  33
compiled vars:  !0 = $a, !1 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 'foo'
    3     1        ASSIGN                                                   !1, <false>
    5     2        INIT_FCALL                                               'var_dump'
          3        BOOL_NOT                                         ~4      !1
          4        IS_EQUAL                                         ~5      !0, ~4
          5        SEND_VAL                                                 ~5
          6        DO_ICALL                                                 
    6     7        INIT_FCALL                                               'var_dump'
          8        BOOL_NOT                                         ~7      !1
          9        IS_EQUAL                                         ~8      !0, ~7
         10        SEND_VAL                                                 ~8
         11        DO_ICALL                                                 
    7    12        INIT_FCALL                                               'var_dump'
         13        IS_NOT_IDENTICAL                                 ~10     !0, !1
         14        SEND_VAL                                                 ~10
         15        DO_ICALL                                                 
   11    16        ASSIGN                                                   !0, <false>
   12    17        ASSIGN                                                   !1, <false>
   14    18        INIT_FCALL                                               'var_dump'
         19        BOOL_NOT                                         ~14     !1
         20        IS_EQUAL                                         ~15     !0, ~14
         21        SEND_VAL                                                 ~15
         22        DO_ICALL                                                 
   15    23        INIT_FCALL                                               'var_dump'
         24        BOOL_NOT                                         ~17     !1
         25        IS_EQUAL                                         ~18     !0, ~17
         26        SEND_VAL                                                 ~18
         27        DO_ICALL                                                 
   16    28        INIT_FCALL                                               'var_dump'
         29        IS_NOT_IDENTICAL                                 ~20     !0, !1
         30        SEND_VAL                                                 ~20
         31        DO_ICALL                                                 
         32      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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