3v4l.org

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<?php echo is_array($a) ? 'true' : 'false'; echo PHP_EOL; echo is_object($a) ? 'true' : 'false'; echo PHP_EOL; $a = null; echo is_array($a) ? 'true' : 'false'; echo PHP_EOL; echo is_object($a) ? 'true' : 'false';
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 2, Position 2 = 4
Branch analysis from position: 2
1 jumps found. (Code = 42) Position 1 = 5
Branch analysis from position: 5
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 = 17, Position 2 = 19
Branch analysis from position: 17
1 jumps found. (Code = 42) Position 1 = 20
Branch analysis from position: 20
2 jumps found. (Code = 43) Position 1 = 24, Position 2 = 26
Branch analysis from position: 24
1 jumps found. (Code = 42) Position 1 = 27
Branch analysis from position: 27
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 26
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 19
2 jumps found. (Code = 43) Position 1 = 24, Position 2 = 26
Branch analysis from position: 24
Branch analysis from position: 26
Branch analysis from position: 11
2 jumps found. (Code = 43) Position 1 = 17, Position 2 = 19
Branch analysis from position: 17
Branch analysis from position: 19
Branch analysis from position: 4
2 jumps found. (Code = 43) Position 1 = 9, Position 2 = 11
Branch analysis from position: 9
Branch analysis from position: 11
filename:       /in/4qebX
function name:  (null)
number of ops:  29
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   TYPE_CHECK                                  128          !0
          1      > JMPZ                                                     ~1, ->4
          2    >   QM_ASSIGN                                        ~2      'true'
          3      > JMP                                                      ->5
          4    >   QM_ASSIGN                                        ~2      'false'
          5    >   ECHO                                                     ~2
    4     6        ECHO                                                     '%0A'
    5     7        TYPE_CHECK                                  256          !0
          8      > JMPZ                                                     ~3, ->11
          9    >   QM_ASSIGN                                        ~4      'true'
         10      > JMP                                                      ->12
         11    >   QM_ASSIGN                                        ~4      'false'
         12    >   ECHO                                                     ~4
    6    13        ECHO                                                     '%0A'
    7    14        ASSIGN                                                   !0, null
    8    15        TYPE_CHECK                                  128          !0
         16      > JMPZ                                                     ~6, ->19
         17    >   QM_ASSIGN                                        ~7      'true'
         18      > JMP                                                      ->20
         19    >   QM_ASSIGN                                        ~7      'false'
         20    >   ECHO                                                     ~7
    9    21        ECHO                                                     '%0A'
   10    22        TYPE_CHECK                                  256          !0
         23      > JMPZ                                                     ~8, ->26
         24    >   QM_ASSIGN                                        ~9      'true'
         25      > JMP                                                      ->27
         26    >   QM_ASSIGN                                        ~9      'false'
         27    >   ECHO                                                     ~9
         28      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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