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<?php spl_autoload_register(function ($class) { if ('Foo' === $class) { class Foo implements Foointerface {} } elseif ('Foointerface' === $class) { throw new Exception(); } }); try { // First call triggers the autoloader new Foo(); } catch (Exception $e) {} // For the second call Foo is loaded var_dump(new Foo()); // Even though it’s missing the interface var_dump(new Foo() instanceof Foointerface); var_dump((new ReflectionClass('Foo'))->getInterfaces());
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 9
Branch analysis from position: 9
1 jumps found. (Code = 62) Position 1 = -2
Found catch point at position: 8
Branch analysis from position: 8
2 jumps found. (Code = 107) Position 1 = 9, Position 2 = -2
Branch analysis from position: 9
filename:       /in/s8ti7
function name:  (null)
number of ops:  29
compiled vars:  !0 = $e
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                                   'spl_autoload_register'
          1        DECLARE_LAMBDA_FUNCTION                              ~1      [0]
    9     2        SEND_VAL                                                     ~1
    3     3        DO_ICALL                                                     
   13     4        NEW                                                  $3      'Foo'
          5        DO_FCALL                                          0          
          6        FREE                                                         $3
          7      > JMP                                                          ->9
   14     8  E > > CATCH                                           last         'Exception'
   17     9    >   INIT_FCALL                                                   'var_dump'
         10        NEW                                                  $5      'Foo'
         11        DO_FCALL                                          0          
         12        SEND_VAR                                                     $5
         13        DO_ICALL                                                     
   20    14        INIT_FCALL                                                   'var_dump'
         15        NEW                                                  $8      'Foo'
         16        DO_FCALL                                          0          
         17        INSTANCEOF                                           ~10     $8, 'Foointerface'
         18        SEND_VAL                                                     ~10
         19        DO_ICALL                                                     
   21    20        INIT_FCALL                                                   'var_dump'
         21        NEW                                                  $12     'ReflectionClass'
         22        SEND_VAL_EX                                                  'Foo'
         23        DO_FCALL                                          0          
         24        INIT_METHOD_CALL                                             $12, 'getInterfaces'
         25        DO_FCALL                                          0  $14     
         26        SEND_VAR                                                     $14
         27        DO_ICALL                                                     
         28      > RETURN                                                       1


Dynamic Functions:
Dynamic Function 0
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 3, Position 2 = 5
Branch analysis from position: 3
1 jumps found. (Code = 42) Position 1 = 10
Branch analysis from position: 10
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 5
2 jumps found. (Code = 43) Position 1 = 7, Position 2 = 10
Branch analysis from position: 7
1 jumps found. (Code = 108) Position 1 = -2
Branch analysis from position: 10
filename:       /in/s8ti7
function name:  {closure:/in/s8ti7:3}
number of ops:  11
compiled vars:  !0 = $class
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   RECV                                                 !0      
    4     1        IS_IDENTICAL                                                 !0, 'Foo'
          2      > JMPZ                                                         ~1, ->5
    5     3    >   DECLARE_CLASS                                                'foo'
    4     4      > JMP                                                          ->10
    6     5    >   IS_IDENTICAL                                                 !0, 'Foointerface'
          6      > JMPZ                                                         ~2, ->10
    7     7    >   NEW                                                  $3      'Exception'
          8        DO_FCALL                                          0          
          9      > THROW                                             0          $3
    9    10    > > RETURN                                                       null

End of Dynamic Function 0

Class Foo: [no user functions]

Generated using Vulcan Logic Dumper, using php 8.5.0


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