3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [ 'id' => [] ]; echo isset($array['id']);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/bqqt9
function name:  (null)
number of ops:  4
compiled vars:  !0 = $array
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, <array>
    5     1        ISSET_ISEMPTY_DIM_OBJ                         0  ~2      !0, 'id'
          2        ECHO                                                     ~2
          3      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
145.91 ms | 1395 KiB | 14 Q