3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = []; $a[] = 1; $a[] = 2; $a[] = 3; unset($a[2]); $a[] = 4; var_dump($a);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/JUWKE
function name:  (null)
number of ops:  14
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    4     1        ASSIGN_DIM                                               !0
          2        OP_DATA                                                  1
    5     3        ASSIGN_DIM                                               !0
          4        OP_DATA                                                  2
    6     5        ASSIGN_DIM                                               !0
          6        OP_DATA                                                  3
    7     7        UNSET_DIM                                                !0, 2
    8     8        ASSIGN_DIM                                               !0
          9        OP_DATA                                                  4
    9    10        INIT_FCALL                                               'var_dump'
         11        SEND_VAR                                                 !0
         12        DO_ICALL                                                 
         13      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
135.68 ms | 996 KiB | 14 Q