3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array( 'a' => 0, ); var_dump($arr['a']); if ($arr['a'] === 1); { var_dump(2); }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 8, Position 2 = 8
Branch analysis from position: 8
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 8
filename:       /in/5M2VQ
function name:  (null)
number of ops:  12
compiled vars:  !0 = $arr
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, <array>
    6     1        INIT_FCALL                                               'var_dump'
          2        FETCH_DIM_R                                      ~2      !0, 'a'
          3        SEND_VAL                                                 ~2
          4        DO_ICALL                                                 
    8     5        FETCH_DIM_R                                      ~4      !0, 'a'
          6        IS_IDENTICAL                                             ~4, 1
          7      > JMPZ                                                     ~5, ->8
   10     8    >   INIT_FCALL                                               'var_dump'
          9        SEND_VAL                                                 2
         10        DO_ICALL                                                 
   11    11      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
156.9 ms | 1394 KiB | 15 Q