3v4l.org

run code in 300+ PHP versions simultaneously
<?php $teste = 1; $valid = ($teste == 0); echo $valid; echo ($teste == 0); echo ($teste == 1); ?>
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/NNZp3
function name:  (null)
number of ops:  9
compiled vars:  !0 = $teste, !1 = $valid
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 1
    4     1        IS_EQUAL                                         ~3      !0, 0
          2        ASSIGN                                                   !1, ~3
    5     3        ECHO                                                     !1
    6     4        IS_EQUAL                                         ~5      !0, 0
          5        ECHO                                                     ~5
    7     6        IS_EQUAL                                         ~6      !0, 1
          7        ECHO                                                     ~6
    8     8      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
201.09 ms | 1392 KiB | 13 Q