3v4l.org

run code in 300+ PHP versions simultaneously
<?php $first = 'z' + 1; echo $first . "\n"; $second = 'z'; $second++; echo $second . "\n"; ?>
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/DML8o
function name:  (null)
number of ops:  9
compiled vars:  !0 = $first, !1 = $second
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ADD                                              ~2      'z', 1
          1        ASSIGN                                                   !0, ~2
          2        CONCAT                                           ~4      !0, '%0A'
          3        ECHO                                                     ~4
    4     4        ASSIGN                                                   !1, 'z'
          5        PRE_INC                                                  !1
          6        CONCAT                                           ~7      !1, '%0A'
          7        ECHO                                                     ~7
    6     8      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
176.21 ms | 1392 KiB | 13 Q