3v4l.org

run code in 300+ PHP versions simultaneously
<?php $obj = (object)array('123a' => '456'); var_dump($obj); if ( isset($obj->{'123a'})) { echo $obj->{'123a'},"\n"; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 7, Position 2 = 10
Branch analysis from position: 7
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 10
filename:       /in/aoMFh
function name:  (null)
number of ops:  11
compiled vars:  !0 = $obj
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   CAST                                          8  ~1      <array>
          1        ASSIGN                                                   !0, ~1
    3     2        INIT_FCALL                                               'var_dump'
          3        SEND_VAR                                                 !0
          4        DO_ICALL                                                 
    4     5        ISSET_ISEMPTY_PROP_OBJ                                   !0, '123a'
          6      > JMPZ                                                     ~4, ->10
    5     7    >   FETCH_OBJ_R                                      ~5      !0, '123a'
          8        ECHO                                                     ~5
          9        ECHO                                                     '%0A'
    6    10    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
181.02 ms | 1394 KiB | 15 Q