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<?php $red = 'apple'; echo !!$red; echo (bool) $red; echo (string) true; echo (string) (bool) $red; // 1 $blue = false; var_dump(!!$blue);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/EYrTb
function name:  (null)
number of ops:  18
compiled vars:  !0 = $red, !1 = $blue
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 'apple'
    3     1        BOOL_NOT                                         ~3      !0
          2        BOOL_NOT                                         ~4      ~3
          3        ECHO                                                     ~4
    4     4        BOOL                                             ~5      !0
          5        ECHO                                                     ~5
    5     6        CAST                                          6  ~6      <true>
          7        ECHO                                                     ~6
    6     8        BOOL                                             ~7      !0
          9        CAST                                          6  ~8      ~7
         10        ECHO                                                     ~8
    7    11        ASSIGN                                                   !1, <false>
    8    12        INIT_FCALL                                               'var_dump'
         13        BOOL_NOT                                         ~10     !1
         14        BOOL_NOT                                         ~11     ~10
         15        SEND_VAL                                                 ~11
         16        DO_ICALL                                                 
         17      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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