3v4l.org

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

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
145.62 ms | 1393 KiB | 15 Q