3v4l.org

run code in 300+ PHP versions simultaneously
<?php $test = null; $region_onfile = (is_null($test)) ? "1":"2";
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 3, Position 2 = 5
Branch analysis from position: 3
1 jumps found. (Code = 42) Position 1 = 6
Branch analysis from position: 6
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 5
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/ahsVi
function name:  (null)
number of ops:  8
compiled vars:  !0 = $test, !1 = $region_onfile
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, null
    3     1        TYPE_CHECK                                    2          !0
          2      > JMPZ                                                     ~3, ->5
          3    >   QM_ASSIGN                                        ~4      '1'
          4      > JMP                                                      ->6
          5    >   QM_ASSIGN                                        ~4      '2'
          6    >   ASSIGN                                                   !1, ~4
          7      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
163.17 ms | 1393 KiB | 13 Q