3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array('a', 'b'); $b = array('c', 'd'); $c = call_user_func_array('array_merge', array_map(null, $a, $b)); var_dump($c);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/D5X4l
function name:  (null)
number of ops:  16
compiled vars:  !0 = $a, !1 = $b, !2 = $c
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_merge'
          3        INIT_FCALL                                               'array_map'
          4        SEND_VAL                                                 null
          5        SEND_VAR                                                 !0
          6        SEND_VAR                                                 !1
          7        DO_ICALL                                         $5      
          8        SEND_ARRAY                                               $5
          9        CHECK_UNDEF_ARGS                                         
         10        DO_FCALL                                      0  $6      
         11        ASSIGN                                                   !2, $6
    7    12        INIT_FCALL                                               'var_dump'
         13        SEND_VAR                                                 !2
         14        DO_ICALL                                                 
         15      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
162.73 ms | 1398 KiB | 19 Q