3v4l.org

run code in 300+ PHP versions simultaneously
<?php error_reporting(-1); empty($doesnt_exist); $array = array(); empty($array['doesnt exist']);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/hPkA5
function name:  (null)
number of ops:  9
compiled vars:  !0 = $doesnt_exist, !1 = $array
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL                                               'error_reporting'
          1        SEND_VAL                                                 -1
          2        DO_ICALL                                                 
    4     3        ISSET_ISEMPTY_CV                                 ~3      !0
          4        FREE                                                     ~3
    6     5        ASSIGN                                                   !1, <array>
    8     6        ISSET_ISEMPTY_DIM_OBJ                         1  ~5      !1, 'doesnt+exist'
          7        FREE                                                     ~5
          8      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
155.98 ms | 1393 KiB | 15 Q