3v4l.org

run code in 300+ PHP versions simultaneously
<?php $n = null; echo null??$n??123; echo "\u{262F}"; intdev(10,3) ?>
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/cgQUP
function name:  (null)
number of ops:  12
compiled vars:  !0 = $n
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, null
    3     1        COALESCE                                         ~2      null
          2        COALESCE                                         ~3      !0
          3        QM_ASSIGN                                        ~3      123
          4        QM_ASSIGN                                        ~2      ~3
          5        ECHO                                                     ~2
    4     6        ECHO                                                     '%E2%98%AF'
    5     7        INIT_FCALL_BY_NAME                                       'intdev'
          8        SEND_VAL_EX                                              10
          9        SEND_VAL_EX                                              3
         10        DO_FCALL                                      0          
    7    11      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
165.27 ms | 1384 KiB | 13 Q