3v4l.org

run code in 300+ PHP versions simultaneously
<?php $obj = (object) [ 'items' => [ 'one', 'two' ] ]; echo (!empty($obj->items2->demo)) ? "true" : "false";
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 6, Position 2 = 8
Branch analysis from position: 6
1 jumps found. (Code = 42) Position 1 = 9
Branch analysis from position: 9
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 8
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/ZF2RD
function name:  (null)
number of ops:  11
compiled vars:  !0 = $obj
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   CAST                                          8  ~1      <array>
    3     1        ASSIGN                                                   !0, ~1
   10     2        FETCH_OBJ_IS                                     ~3      !0, 'items2'
          3        ISSET_ISEMPTY_PROP_OBJ                           ~4      ~3, 'demo'
          4        BOOL_NOT                                         ~5      ~4
          5      > JMPZ                                                     ~5, ->8
          6    >   QM_ASSIGN                                        ~6      'true'
          7      > JMP                                                      ->9
          8    >   QM_ASSIGN                                        ~6      'false'
          9    >   ECHO                                                     ~6
         10      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
156.25 ms | 1384 KiB | 13 Q