3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public $field = 'my-value'; } function test( Foo $object ) { $object->field = 'new-value'; } $instance = new Foo(); var_dump( $instance->field ); test( $instance ); var_dump( $instance->field );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/9j5Re
function name:  (null)
number of ops:  15
compiled vars:  !0 = $instance
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   11     0  E >   NEW                                              $1      'Foo'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $1
   12     3        INIT_FCALL                                               'var_dump'
          4        FETCH_OBJ_R                                      ~4      !0, 'field'
          5        SEND_VAL                                                 ~4
          6        DO_ICALL                                                 
   13     7        INIT_FCALL                                               'test'
          8        SEND_VAR                                                 !0
          9        DO_FCALL                                      0          
   14    10        INIT_FCALL                                               'var_dump'
         11        FETCH_OBJ_R                                      ~7      !0, 'field'
         12        SEND_VAL                                                 ~7
         13        DO_ICALL                                                 
         14      > RETURN                                                   1

Function test:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/9j5Re
function name:  test
number of ops:  4
compiled vars:  !0 = $object
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    7     0  E >   RECV                                             !0      
    8     1        ASSIGN_OBJ                                               !0, 'field'
          2        OP_DATA                                                  'new-value'
    9     3      > RETURN                                                   null

End of function test

Class Foo: [no user functions]

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
174.47 ms | 1389 KiB | 16 Q