3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A {} var_dump(is_nan(new A()));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/u0A9P
function name:  (null)
number of ops:  9
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   INIT_FCALL                                               'var_dump'
          1        INIT_FCALL                                               'is_nan'
          2        NEW                                              $0      'A'
          3        DO_FCALL                                      0          
          4        SEND_VAR                                                 $0
          5        DO_ICALL                                         $2      
          6        SEND_VAR                                                 $2
          7        DO_ICALL                                                 
          8      > RETURN                                                   1

Class A: [no user functions]

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
158.32 ms | 1393 KiB | 17 Q