3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array("This is a string"); var_dump( isset($array[0][0][0]) );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/TXhgV
function name:  (null)
number of ops:  8
compiled vars:  !0 = $array
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    5     1        INIT_FCALL                                               'var_dump'
          2        FETCH_DIM_IS                                     ~2      !0, 0
          3        FETCH_DIM_IS                                     ~3      ~2, 0
          4        ISSET_ISEMPTY_DIM_OBJ                         0  ~4      ~3, 0
          5        SEND_VAL                                                 ~4
          6        DO_ICALL                                                 
          7      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
146.78 ms | 1385 KiB | 15 Q