3v4l.org

run code in 300+ PHP versions simultaneously
<?php class fun { } $a = null; new fun($a = 123); var_dump($a);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/lOW29
function name:  (null)
number of ops:  10
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    7     0  E >   ASSIGN                                                   !0, null
    9     1        NEW                                              $2      'fun'
          2        ASSIGN                                           ~3      !0, 123
          3        SEND_VAL_EX                                              ~3
          4        DO_FCALL                                      0          
          5        FREE                                                     $2
   11     6        INIT_FCALL                                               'var_dump'
          7        SEND_VAR                                                 !0
          8        DO_ICALL                                                 
          9      > RETURN                                                   1

Class fun: [no user functions]

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
148.14 ms | 1394 KiB | 15 Q