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<?php class LazyProperties { protected $foo; public function __construct() { unset($this->foo); } public function getFoo() { return $this->foo; } public function __get($property) { switch ($property) { case 'foo': echo __METHOD__."() is called\n"; return $this->foo = 'magic'; } } } $o = new LazyProperties(); var_dump($o->getFoo()); var_dump($o->getFoo()); var_dump($o->getFoo());
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/tYYMD
function name:  (null)
number of ops:  19
compiled vars:  !0 = $o
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   27     0  E >   NEW                                                  $1      'LazyProperties'
          1        DO_FCALL                                          0          
          2        ASSIGN                                                       !0, $1
   29     3        INIT_FCALL                                                   'var_dump'
          4        INIT_METHOD_CALL                                             !0, 'getFoo'
          5        DO_FCALL                                          0  $4      
          6        SEND_VAR                                                     $4
          7        DO_ICALL                                                     
   30     8        INIT_FCALL                                                   'var_dump'
          9        INIT_METHOD_CALL                                             !0, 'getFoo'
         10        DO_FCALL                                          0  $6      
         11        SEND_VAR                                                     $6
         12        DO_ICALL                                                     
   31    13        INIT_FCALL                                                   'var_dump'
         14        INIT_METHOD_CALL                                             !0, 'getFoo'
         15        DO_FCALL                                          0  $8      
         16        SEND_VAR                                                     $8
         17        DO_ICALL                                                     
         18      > RETURN                                                       1

Class LazyProperties:
Function __construct:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/tYYMD
function name:  __construct
number of ops:  2
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    9     0  E >   UNSET_OBJ                                                    'foo'
   10     1      > RETURN                                                       null

End of function __construct

Function getfoo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/tYYMD
function name:  getFoo
number of ops:  3
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   14     0  E >   FETCH_OBJ_R                                          ~0      'foo'
          1      > RETURN                                                       ~0
   15     2*     > RETURN                                                       null

End of function getfoo

Function __get:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 44) Position 1 = 3, Position 2 = 4
Branch analysis from position: 3
1 jumps found. (Code = 42) Position 1 = 8
Branch analysis from position: 8
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 4
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/tYYMD
function name:  __get
number of ops:  9
compiled vars:  !0 = $property
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   17     0  E >   RECV                                                 !0      
   20     1        IS_EQUAL                                                     !0, 'foo'
          2      > JMPNZ                                                        ~1, ->4
          3    > > JMP                                                          ->8
   21     4    >   ECHO                                                         'LazyProperties%3A%3A__get%28%29+is+called%0A'
   22     5        ASSIGN_OBJ                                           ~2      'foo'
          6        OP_DATA                                                      'magic'
          7      > RETURN                                                       ~2
   24     8    > > RETURN                                                       null

End of function __get

End of class LazyProperties.

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