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<?php class FalseObject { public function __toString() { // return an empty string that in PHP evaluates to false return ''; } } $false = new FalseObject(); if ( $false->toString() ) { print $false . ' is false.'; } else { print $false . ' is true.'; } print '<br />'; if ( !$false ) { print $false . ' is really true.'; } else { print $false . ' is really false.'; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 7, Position 2 = 10
Branch analysis from position: 7
1 jumps found. (Code = 42) Position 1 = 12
Branch analysis from position: 12
2 jumps found. (Code = 43) Position 1 = 15, Position 2 = 18
Branch analysis from position: 15
1 jumps found. (Code = 42) Position 1 = 20
Branch analysis from position: 20
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 18
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 10
2 jumps found. (Code = 43) Position 1 = 15, Position 2 = 18
Branch analysis from position: 15
Branch analysis from position: 18
filename:       /in/mSXHc
function name:  (null)
number of ops:  21
compiled vars:  !0 = $false
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   DECLARE_CLASS                                            'falseobject'
    9     1        NEW                                              $1      'FalseObject'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $1
   11     4        INIT_METHOD_CALL                                         !0, 'toString'
          5        DO_FCALL                                      0  $4      
          6      > JMPZ                                                     $4, ->10
   12     7    >   CONCAT                                           ~5      !0, '+is+false.'
          8        ECHO                                                     ~5
          9      > JMP                                                      ->12
   14    10    >   CONCAT                                           ~6      !0, '+is+true.'
         11        ECHO                                                     ~6
   17    12    >   ECHO                                                     '%3Cbr+%2F%3E'
   19    13        BOOL_NOT                                         ~7      !0
         14      > JMPZ                                                     ~7, ->18
   20    15    >   CONCAT                                           ~8      !0, '+is+really+true.'
         16        ECHO                                                     ~8
         17      > JMP                                                      ->20
   22    18    >   CONCAT                                           ~9      !0, '+is+really+false.'
         19        ECHO                                                     ~9
   23    20    > > RETURN                                                   1

Class FalseObject:
Function __tostring:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/mSXHc
function name:  __toString
number of ops:  3
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E > > RETURN                                                   ''
    6     1*       VERIFY_RETURN_TYPE                                       
          2*     > RETURN                                                   null

End of function __tostring

End of class FalseObject.

Generated using Vulcan Logic Dumper, using php 8.0.0


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