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<?php function func() { return false; } $tmp = false; if (!$tmp = func() === true) { var_dump($tmp); } $tmp = true; if (!$tmp = func() === true) { var_dump($tmp); }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 7, Position 2 = 10
Branch analysis from position: 7
2 jumps found. (Code = 43) Position 1 = 17, Position 2 = 20
Branch analysis from position: 17
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 20
Branch analysis from position: 10
filename:       /in/VFP46
function name:  (null)
number of ops:  21
compiled vars:  !0 = $tmp
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    8     0  E >   ASSIGN                                                   !0, <false>
    9     1        INIT_FCALL                                               'func'
          2        DO_FCALL                                      0  $2      
          3        TYPE_CHECK                                    8  ~3      $2
          4        ASSIGN                                           ~4      !0, ~3
          5        BOOL_NOT                                         ~5      ~4
          6      > JMPZ                                                     ~5, ->10
   10     7    >   INIT_FCALL                                               'var_dump'
          8        SEND_VAR                                                 !0
          9        DO_ICALL                                                 
   13    10    >   ASSIGN                                                   !0, <true>
   14    11        INIT_FCALL                                               'func'
         12        DO_FCALL                                      0  $8      
         13        TYPE_CHECK                                    8  ~9      $8
         14        ASSIGN                                           ~10     !0, ~9
         15        BOOL_NOT                                         ~11     ~10
         16      > JMPZ                                                     ~11, ->20
   15    17    >   INIT_FCALL                                               'var_dump'
         18        SEND_VAR                                                 !0
         19        DO_ICALL                                                 
   16    20    > > RETURN                                                   1

Function func:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/VFP46
function name:  func
number of ops:  2
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E > > RETURN                                                   <false>
    6     1*     > RETURN                                                   null

End of function func

Generated using Vulcan Logic Dumper, using php 8.0.0


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