3v4l.org

run code in 500+ PHP versions simultaneously
<?php $arr1 = ['a' => 1, 'b' => 2]; $arr2 = ['c' => 3, 'd' => 4]; array_push($arr1, ...$arr2); var_export($arr1);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/BHPSt
function name:  (null)
number of ops:  11
compiled vars:  !0 = $arr1, !1 = $arr2
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, <array>
    4     1        ASSIGN                                                       !1, <array>
    5     2        INIT_FCALL                                                   'array_push'
          3        SEND_REF                                                     !0
          4        SEND_UNPACK                                                  !1
          5        CHECK_UNDEF_ARGS                                             
          6        DO_ICALL                                                     
    6     7        INIT_FCALL                                                   'var_export'
          8        SEND_VAR                                                     !0
          9        DO_ICALL                                                     
         10      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


preferences:
159.2 ms | 1804 KiB | 15 Q