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<?php $xml = new SimpleXMLElement('<tag></tag>'); var_dump((bool) $xml); if($xml) { echo 'An empty SimpleXMLElement is truthy'; } else { echo 'An empty SimpleXMLElement is falsey'; } echo "\n"; $xml = new SimpleXMLElement('<tag>data</tag>'); if($xml) { echo 'A SimpleXMLElement with data is truthy'; } else { echo 'A SimpleXMLElement with data is falsey'; } echo "\n"; $obj = new stdClass(); if($obj) { echo 'An empty stdClass is truthy'; } else { echo 'An empty stdClass is falsey'; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 9, Position 2 = 11
Branch analysis from position: 9
1 jumps found. (Code = 42) Position 1 = 12
Branch analysis from position: 12
2 jumps found. (Code = 43) Position 1 = 18, Position 2 = 20
Branch analysis from position: 18
1 jumps found. (Code = 42) Position 1 = 21
Branch analysis from position: 21
2 jumps found. (Code = 43) Position 1 = 26, Position 2 = 28
Branch analysis from position: 26
1 jumps found. (Code = 42) Position 1 = 29
Branch analysis from position: 29
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 28
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 20
2 jumps found. (Code = 43) Position 1 = 26, Position 2 = 28
Branch analysis from position: 26
Branch analysis from position: 28
Branch analysis from position: 11
2 jumps found. (Code = 43) Position 1 = 18, Position 2 = 20
Branch analysis from position: 18
Branch analysis from position: 20
filename:       /in/Q8YKF
function name:  (null)
number of ops:  30
compiled vars:  !0 = $xml, !1 = $obj
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   NEW                                              $2      'SimpleXMLElement'
          1        SEND_VAL_EX                                              '%3Ctag%3E%3C%2Ftag%3E'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $2
    3     4        INIT_FCALL                                               'var_dump'
          5        BOOL                                             ~5      !0
          6        SEND_VAL                                                 ~5
          7        DO_ICALL                                                 
    4     8      > JMPZ                                                     !0, ->11
    5     9    >   ECHO                                                     'An+empty+SimpleXMLElement+is+truthy'
         10      > JMP                                                      ->12
    7    11    >   ECHO                                                     'An+empty+SimpleXMLElement+is+falsey'
    9    12    >   ECHO                                                     '%0A'
   10    13        NEW                                              $7      'SimpleXMLElement'
         14        SEND_VAL_EX                                              '%3Ctag%3Edata%3C%2Ftag%3E'
         15        DO_FCALL                                      0          
         16        ASSIGN                                                   !0, $7
   11    17      > JMPZ                                                     !0, ->20
   12    18    >   ECHO                                                     'A+SimpleXMLElement+with+data+is+truthy'
         19      > JMP                                                      ->21
   14    20    >   ECHO                                                     'A+SimpleXMLElement+with+data+is+falsey'
   16    21    >   ECHO                                                     '%0A'
   17    22        NEW                                              $10     'stdClass'
         23        DO_FCALL                                      0          
         24        ASSIGN                                                   !1, $10
   18    25      > JMPZ                                                     !1, ->28
   19    26    >   ECHO                                                     'An+empty+stdClass+is+truthy'
         27      > JMP                                                      ->29
   21    28    >   ECHO                                                     'An+empty+stdClass+is+falsey'
   22    29    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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