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<?php class x { function __tostring() { return 'foo'; } } $x = new x; var_dump(is_string($x), is_string("$x"));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/DSR73
function name:  (null)
number of ops:  12
compiled vars:  !0 = $x
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   DECLARE_CLASS                                            'x'
    5     1        NEW                                              $1      'x'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $1
    6     4        INIT_FCALL                                               'var_dump'
          5        TYPE_CHECK                                   64  ~4      !0
          6        SEND_VAL                                                 ~4
          7        CAST                                          6  ~5      !0
          8        TYPE_CHECK                                   64  ~6      ~5
          9        SEND_VAL                                                 ~6
         10        DO_ICALL                                                 
         11      > RETURN                                                   1

Class x:
Function __tostring:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/DSR73
function name:  __tostring
number of ops:  3
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E > > RETURN                                                   'foo'
          1*       VERIFY_RETURN_TYPE                                       
          2*     > RETURN                                                   null

End of function __tostring

End of class x.

Generated using Vulcan Logic Dumper, using php 8.0.0


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