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<?php // This is a basic class without any special behavior. No deprecation error occur despite the public_property being unset. $foo = new Foo(); $foo->public_property = true; unset( $foo->public_property ); $foo->public_property = true; // A class with a __set magic method that allows modifying declared public properties, mimicking the basic class behaviour and providing more backward compatibility. $baz = new Baz(); $baz->public_property = true; unset( $baz->public_property ); $baz->public_property = true; // This is a class with a __set magic method that restricts dynamic property creation. $bar = new Bar(); $bar->public_property = true; unset( $bar->public_property ); $bar->public_property = true; class Foo { public $public_property; } class Baz { public $public_property; public function __set( $prop, $value ) { if ( 'known_dynamic_property' === $prop ) { // Dynamic property-specific logic goes here. return; } // Checks if the property is a known public property and allows setting it. if ( 'public_property' === $prop ) { $this->public_property = $value; return; } trigger_error( sprintf( 'Setting the dynamic property "%s" on %s is deprecated', $prop, __CLASS__ ), E_USER_DEPRECATED ); } } class Bar { public $public_property; public function __set( $prop, $value ) { if ( 'known_dynamic_property' === $prop ) { // Dynamic property-specific logic goes here. return; } trigger_error( sprintf( 'Setting the dynamic property "%s" on %s is deprecated', $prop, __CLASS__ ), E_USER_DEPRECATED ); } }
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/QU0tT
function name:  (null)
number of ops:  25
compiled vars:  !0 = $foo, !1 = $baz, !2 = $bar
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    4     0  E >   NEW                                                  $3      'Foo'
          1        DO_FCALL                                          0          
          2        ASSIGN                                                       !0, $3
    5     3        ASSIGN_OBJ                                                   !0, 'public_property'
          4        OP_DATA                                                      <true>
    6     5        UNSET_OBJ                                                    !0, 'public_property'
    7     6        ASSIGN_OBJ                                                   !0, 'public_property'
          7        OP_DATA                                                      <true>
   10     8        NEW                                                  $8      'Baz'
          9        DO_FCALL                                          0          
         10        ASSIGN                                                       !1, $8
   11    11        ASSIGN_OBJ                                                   !1, 'public_property'
         12        OP_DATA                                                      <true>
   12    13        UNSET_OBJ                                                    !1, 'public_property'
   13    14        ASSIGN_OBJ                                                   !1, 'public_property'
         15        OP_DATA                                                      <true>
   16    16        NEW                                                  $13     'Bar'
         17        DO_FCALL                                          0          
         18        ASSIGN                                                       !2, $13
   17    19        ASSIGN_OBJ                                                   !2, 'public_property'
         20        OP_DATA                                                      <true>
   18    21        UNSET_OBJ                                                    !2, 'public_property'
   19    22        ASSIGN_OBJ                                                   !2, 'public_property'
         23        OP_DATA                                                      <true>
   62    24      > RETURN                                                       1

Class Foo: [no user functions]
Class Baz:
Function __set:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 4, Position 2 = 5
Branch analysis from position: 4
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 5
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
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/QU0tT
function name:  __set
number of ops:  20
compiled vars:  !0 = $prop, !1 = $value
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   29     0  E >   RECV                                                 !0      
          1        RECV                                                 !1      
   30     2        IS_IDENTICAL                                                 !0, 'known_dynamic_property'
          3      > JMPZ                                                         ~2, ->5
   32     4    > > RETURN                                                       null
   36     5    >   IS_IDENTICAL                                                 !0, 'public_property'
          6      > JMPZ                                                         ~3, ->10
   37     7    >   ASSIGN_OBJ                                                   'public_property'
          8        OP_DATA                                                      !1
   38     9      > RETURN                                                       null
   41    10    >   INIT_FCALL                                                   'trigger_error'
   42    11        ROPE_INIT                                         5  ~6      'Setting+the+dynamic+property+%22'
         12        ROPE_ADD                                          1  ~6      ~6, !0
         13        ROPE_ADD                                          2  ~6      ~6, '%22+on+'
         14        ROPE_ADD                                          3  ~6      ~6, 'Baz'
         15        ROPE_END                                          4  ~5      ~6, '+is+deprecated'
         16        SEND_VAL                                                     ~5
   43    17        SEND_VAL                                                     16384
   41    18        DO_ICALL                                                     
   45    19      > RETURN                                                       null

End of function __set

End of class Baz.

Class Bar:
Function __set:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 4, Position 2 = 5
Branch analysis from position: 4
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 5
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/QU0tT
function name:  __set
number of ops:  15
compiled vars:  !0 = $prop, !1 = $value
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   51     0  E >   RECV                                                 !0      
          1        RECV                                                 !1      
   52     2        IS_IDENTICAL                                                 !0, 'known_dynamic_property'
          3      > JMPZ                                                         ~2, ->5
   54     4    > > RETURN                                                       null
   57     5    >   INIT_FCALL                                                   'trigger_error'
   58     6        ROPE_INIT                                         5  ~4      'Setting+the+dynamic+property+%22'
          7        ROPE_ADD                                          1  ~4      ~4, !0
          8        ROPE_ADD                                          2  ~4      ~4, '%22+on+'
          9        ROPE_ADD                                          3  ~4      ~4, 'Bar'
         10        ROPE_END                                          4  ~3      ~4, '+is+deprecated'
         11        SEND_VAL                                                     ~3
   59    12        SEND_VAL                                                     16384
   57    13        DO_ICALL                                                     
   61    14      > RETURN                                                       null

End of function __set

End of class Bar.

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