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<?php class A { var $a = 5; public $bg = ['g'=>44,'h'=>55]; public function __set($name, $value) { if(!isset($bg[$name])) { throw new Exception("Cannot add new property \$$name to instance of " . __CLASS__); } } } $a=new A; echo $a->a; $a->a = 9; echo $a->a; $a->g = 88; echo $a->g;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/sqWZ2
function name:  (null)
number of ops:  14
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   14     0  E >   NEW                                              $1      'A'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $1
   15     3        FETCH_OBJ_R                                      ~4      !0, 'a'
          4        ECHO                                                     ~4
   16     5        ASSIGN_OBJ                                               !0, 'a'
          6        OP_DATA                                                  9
   17     7        FETCH_OBJ_R                                      ~6      !0, 'a'
          8        ECHO                                                     ~6
   19     9        ASSIGN_OBJ                                               !0, 'g'
         10        OP_DATA                                                  88
   20    11        FETCH_OBJ_R                                      ~8      !0, 'g'
         12        ECHO                                                     ~8
         13      > RETURN                                                   1

Class A:
Function __set:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 5, Position 2 = 13
Branch analysis from position: 5
1 jumps found. (Code = 108) Position 1 = -2
Branch analysis from position: 13
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/sqWZ2
function name:  __set
number of ops:  14
compiled vars:  !0 = $name, !1 = $value, !2 = $bg
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    7     0  E >   RECV                                             !0      
          1        RECV                                             !1      
    8     2        ISSET_ISEMPTY_DIM_OBJ                         0  ~3      !2, !0
          3        BOOL_NOT                                         ~4      ~3
          4      > JMPZ                                                     ~4, ->13
    9     5    >   NEW                                              $5      'Exception'
          6        ROPE_INIT                                     3  ~7      'Cannot+add+new+property+%24'
          7        ROPE_ADD                                      1  ~7      ~7, !0
          8        ROPE_END                                      2  ~6      ~7, '+to+instance+of+'
          9        CONCAT                                           ~9      ~6, 'A'
         10        SEND_VAL_EX                                              ~9
         11        DO_FCALL                                      0          
         12      > THROW                                         0          $5
   11    13    > > RETURN                                                   null

End of function __set

End of class A.

Generated using Vulcan Logic Dumper, using php 8.0.0


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