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<?php class A { function __toString() { throw new \Exception('boo'); } } function b() { (string) new A(); } b();
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/5ZJ2i
function name:  (null)
number of ops:  4
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   DECLARE_CLASS                                                'a'
   15     1        INIT_FCALL                                                   'b'
          2        DO_FCALL                                          0          
          3      > RETURN                                                       1

Function b:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/5ZJ2i
function name:  b
number of ops:  5
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   11     0  E >   NEW                                                  $0      'A'
          1        DO_FCALL                                          0          
          2        CAST                                              6  ~2      $0
          3        FREE                                                         ~2
   12     4      > RETURN                                                       null

End of function b

Class A:
Function __tostring:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 108) Position 1 = -2
filename:       /in/5ZJ2i
function name:  __toString
number of ops:  6
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    6     0  E >   NEW                                                  $0      'Exception'
          1        SEND_VAL_EX                                                  'boo'
          2        DO_FCALL                                          0          
          3      > THROW                                             0          $0
    7     4*       VERIFY_RETURN_TYPE                                           
          5*     > RETURN                                                       null

End of function __tostring

End of class A.

Generated using Vulcan Logic Dumper, using php 8.5.0


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