3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(NAN == NAN); var_dump(NAN === NAN); var_dump(array(NAN) == array(NAN)); var_dump(array(NAN) === array(NAN)); $a = array(NAN); var_dump($a == $a); var_dump($a === $a);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/VUdnu
function name:  (null)
number of ops:  22
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'var_dump'
          1        SEND_VAL                                                 <false>
          2        DO_ICALL                                                 
    4     3        INIT_FCALL                                               'var_dump'
          4        SEND_VAL                                                 <false>
          5        DO_ICALL                                                 
    5     6        INIT_FCALL                                               'var_dump'
          7        SEND_VAL                                                 <false>
          8        DO_ICALL                                                 
    6     9        INIT_FCALL                                               'var_dump'
         10        SEND_VAL                                                 <false>
         11        DO_ICALL                                                 
    7    12        ASSIGN                                                   !0, <array>
    8    13        INIT_FCALL                                               'var_dump'
         14        IS_EQUAL                                         ~6      !0, !0
         15        SEND_VAL                                                 ~6
         16        DO_ICALL                                                 
    9    17        INIT_FCALL                                               'var_dump'
         18        IS_IDENTICAL                                     ~8      !0, !0
         19        SEND_VAL                                                 ~8
         20        DO_ICALL                                                 
         21      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
152.82 ms | 1399 KiB | 15 Q