3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a='hello world'; echo $a[2].$a[55].$a[1];
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/jdluX
function name:  (null)
number of ops:  8
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 'hello+world'
    3     1        FETCH_DIM_R                                      ~2      !0, 2
          2        FETCH_DIM_R                                      ~3      !0, 55
          3        CONCAT                                           ~4      ~2, ~3
          4        FETCH_DIM_R                                      ~5      !0, 1
          5        CONCAT                                           ~6      ~4, ~5
          6        ECHO                                                     ~6
          7      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
184.47 ms | 1392 KiB | 13 Q