3v4l.org

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

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
163.65 ms | 1394 KiB | 15 Q