3v4l.org

run code in 300+ PHP versions simultaneously
<?php $f = FALSE; $t = TRUE; echo "{$f}_{$t}";
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/YFMBU
function name:  (null)
number of ops:  7
compiled vars:  !0 = $f, !1 = $t
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <false>
    4     1        ASSIGN                                                   !1, <true>
    6     2        ROPE_INIT                                     3  ~5      !0
          3        ROPE_ADD                                      1  ~5      ~5, '_'
          4        ROPE_END                                      2  ~4      ~5, !1
          5        ECHO                                                     ~4
          6      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
156.32 ms | 1392 KiB | 13 Q