3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 'foo'; $b = 'bar'; $c = 'qux'; $d = "{$a}{$b}{$c}";
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/jEWnO
function name:  (null)
number of ops:  8
compiled vars:  !0 = $a, !1 = $b, !2 = $c, !3 = $d
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'foo'
    4     1        ASSIGN                                                   !1, 'bar'
    5     2        ASSIGN                                                   !2, 'qux'
    6     3        ROPE_INIT                                     3  ~8      !0
          4        ROPE_ADD                                      1  ~8      ~8, !1
          5        ROPE_END                                      2  ~7      ~8, !2
          6        ASSIGN                                                   !3, ~7
          7      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
155.12 ms | 1392 KiB | 13 Q