3v4l.org

run code in 500+ PHP versions simultaneously
<?php $a = [0, 1, 2]; $b = [3, 4]; var_dump($a + $b); var_dump($b + $a); $a = ["a" => 0, "b" => 1, "c" => 2]; $b = ["b" => 3, "d" => 4]; var_dump($a + $b); var_dump($b + $a);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/dXl11
function name:  (null)
number of ops:  21
compiled vars:  !0 = $a, !1 = $b
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, <array>
    4     1        ASSIGN                                                       !1, <array>
    6     2        INIT_FCALL                                                   'var_dump'
          3        ADD                                                  ~4      !0, !1
          4        SEND_VAL                                                     ~4
          5        DO_ICALL                                                     
    7     6        INIT_FCALL                                                   'var_dump'
          7        ADD                                                  ~6      !1, !0
          8        SEND_VAL                                                     ~6
          9        DO_ICALL                                                     
    9    10        ASSIGN                                                       !0, <array>
   10    11        ASSIGN                                                       !1, <array>
   12    12        INIT_FCALL                                                   'var_dump'
         13        ADD                                                  ~10     !0, !1
         14        SEND_VAL                                                     ~10
         15        DO_ICALL                                                     
   13    16        INIT_FCALL                                                   'var_dump'
         17        ADD                                                  ~12     !1, !0
         18        SEND_VAL                                                     ~12
         19        DO_ICALL                                                     
         20      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


preferences:
148.84 ms | 2181 KiB | 14 Q