3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "hello"; $b = "hi"; $val = "howdy"; $val = "a"; echo ${'val'};
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/naO6a
function name:  (null)
number of ops:  6
compiled vars:  !0 = $a, !1 = $b, !2 = $val
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 'hello'
    3     1        ASSIGN                                                   !1, 'hi'
    4     2        ASSIGN                                                   !2, 'howdy'
    6     3        ASSIGN                                                   !2, 'a'
    7     4        ECHO                                                     !2
          5      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
165.91 ms | 1392 KiB | 13 Q