3v4l.org

run code in 300+ PHP versions simultaneously
<?php interface MyInterface {} class MyClass implements MyInterface {} $a = new MyClass; var_dump( $a instanceof MyInterface );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/DKCPW
function name:  (null)
number of ops:  9
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   DECLARE_CLASS                                            'myclass'
    7     1        NEW                                              $1      'MyClass'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $1
    8     4        INIT_FCALL                                               'var_dump'
          5        INSTANCEOF                                       ~4      !0, 'MyInterface'
          6        SEND_VAL                                                 ~4
          7        DO_ICALL                                                 
          8      > RETURN                                                   1

Class MyInterface: [no user functions]
Class MyClass: [no user functions]

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
166.97 ms | 1393 KiB | 15 Q