3v4l.org

run code in 300+ PHP versions simultaneously
<?php declare(strict_types = 1); class strcls implements Stringable { public function __toString() { return '{"a": 1}'; } } var_dump(json_decode(new strcls(), true));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/uEhbM
function name:  (null)
number of ops:  11
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   DECLARE_CLASS                                            'strcls'
   10     1        INIT_FCALL                                               'var_dump'
          2        INIT_FCALL                                               'json_decode'
          3        NEW                                              $0      'strcls'
          4        DO_FCALL                                      0          
          5        SEND_VAR                                                 $0
          6        SEND_VAL                                                 <true>
          7        DO_ICALL                                         $2      
          8        SEND_VAR                                                 $2
          9        DO_ICALL                                                 
         10      > RETURN                                                   1

Class strcls:
Function __tostring:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/uEhbM
function name:  __toString
number of ops:  3
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    6     0  E > > RETURN                                                   '%7B%22a%22%3A+1%7D'
    7     1*       VERIFY_RETURN_TYPE                                       
          2*     > RETURN                                                   null

End of function __tostring

End of class strcls.

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
141.58 ms | 1005 KiB | 15 Q