3v4l.org

run code in 300+ PHP versions simultaneously
<?php $obj = new stdClass; $obj->param = 'black'; var_dump( empty( $obj->param ) );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/5UoAT
function name:  (null)
number of ops:  10
compiled vars:  !0 = $obj
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $1      'stdClass'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $1
    4     3        ASSIGN_OBJ                                               !0, 'param'
          4        OP_DATA                                                  'black'
    6     5        INIT_FCALL                                               'var_dump'
          6        ISSET_ISEMPTY_PROP_OBJ                           ~5      !0, 'param'
          7        SEND_VAL                                                 ~5
          8        DO_ICALL                                                 
          9      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
147.82 ms | 1393 KiB | 15 Q