3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo{ public function __unset($name) { trigger_error($name, E_USER_WARNING); } } $f = new Foo(); $f->__unset("direct"); @$f->__unset("direct suppressed"); unset($f->{"unset"}); //@unset($f->{"unset suppressed 1"}); - not allowed //unset(@$f->{"unset suppressed 2"}); - not allowed
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/idvWY
function name:  (null)
number of ops:  13
compiled vars:  !0 = $f
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    9     0  E >   NEW                                              $1      'Foo'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $1
   11     3        INIT_METHOD_CALL                                         !0, '__unset'
          4        SEND_VAL_EX                                              'direct'
          5        DO_FCALL                                      0          
   12     6        BEGIN_SILENCE                                    ~5      
          7        INIT_METHOD_CALL                                         !0, '__unset'
          8        SEND_VAL_EX                                              'direct+suppressed'
          9        DO_FCALL                                      0          
         10        END_SILENCE                                              ~5
   14    11        UNSET_OBJ                                                !0, 'unset'
   16    12      > RETURN                                                   1

Class Foo:
Function __unset:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/idvWY
function name:  __unset
number of ops:  6
compiled vars:  !0 = $name
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   RECV                                             !0      
    5     1        INIT_FCALL                                               'trigger_error'
          2        SEND_VAR                                                 !0
          3        SEND_VAL                                                 512
          4        DO_ICALL                                                 
    6     5      > RETURN                                                   null

End of function __unset

End of class Foo.

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
154.95 ms | 1395 KiB | 15 Q