3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a=[];$a[]=9999;$a[6]=&$a; var_dump([$a,$a]);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/cd071
function name:  (null)
number of ops:  11
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
          1        ASSIGN_DIM                                               !0
          2        OP_DATA                                                  9999
          3        FETCH_DIM_W                                      $3      !0, 6
          4        ASSIGN_REF                                               $3, !0
    4     5        INIT_FCALL                                               'var_dump'
          6        INIT_ARRAY                                       ~5      !0
          7        ADD_ARRAY_ELEMENT                                ~5      !0
          8        SEND_VAL                                                 ~5
          9        DO_ICALL                                                 
         10      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
161.19 ms | 1398 KiB | 15 Q