3v4l.org

run code in 300+ PHP versions simultaneously
<?php $y = array_merge(array('a'=>2, 'b'=>4, 'c'=>6), (array)$x); var_dump($y);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/1OKkt
function name:  (null)
number of ops:  10
compiled vars:  !0 = $y, !1 = $x
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL                                               'array_merge'
          1        SEND_VAL                                                 <array>
          2        CAST                                          7  ~2      !1
          3        SEND_VAL                                                 ~2
          4        DO_ICALL                                         $3      
          5        ASSIGN                                                   !0, $3
    3     6        INIT_FCALL                                               'var_dump'
          7        SEND_VAR                                                 !0
          8        DO_ICALL                                                 
          9      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
162.54 ms | 1394 KiB | 17 Q