3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump( @serialize($f), serialize(null) );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/GHATQ
function name:  (null)
number of ops:  13
compiled vars:  !0 = $f
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'var_dump'
    4     1        BEGIN_SILENCE                                    ~1      
          2        INIT_FCALL                                               'serialize'
          3        SEND_VAR                                                 !0
          4        DO_ICALL                                         $2      
          5        END_SILENCE                                              ~1
          6        SEND_VAR                                                 $2
    5     7        INIT_FCALL                                               'serialize'
          8        SEND_VAL                                                 null
          9        DO_ICALL                                         $3      
         10        SEND_VAR                                                 $3
         11        DO_ICALL                                                 
    6    12      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
157.44 ms | 1394 KiB | 17 Q