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<?php class Foo { function __construct() { $this->bar = new Bar($this); } } class Bar { function __construct($foo = null) { $this->foo = $foo; } } $i = 1; while ($i > 1000) { $foo = new Foo(); unset($foo); echo number_format(memory_get_usage()) . "\n"; $i++; }
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 14
Branch analysis from position: 14
2 jumps found. (Code = 44) Position 1 = 16, Position 2 = 2
Branch analysis from position: 16
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 2
2 jumps found. (Code = 44) Position 1 = 16, Position 2 = 2
Branch analysis from position: 16
Branch analysis from position: 2
filename:       /in/JAEjA
function name:  (null)
number of ops:  17
compiled vars:  !0 = $i, !1 = $foo
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   16     0  E >   ASSIGN                                                   !0, 1
   17     1      > JMP                                                      ->14
   18     2    >   NEW                                              $3      'Foo'
          3        DO_FCALL                                      0          
          4        ASSIGN                                                   !1, $3
   19     5        UNSET_CV                                                 !1
   20     6        INIT_FCALL                                               'number_format'
          7        INIT_FCALL                                               'memory_get_usage'
          8        DO_ICALL                                         $6      
          9        SEND_VAR                                                 $6
         10        DO_ICALL                                         $7      
         11        CONCAT                                           ~8      $7, '%0A'
         12        ECHO                                                     ~8
   21    13        PRE_INC                                                  !0
   17    14    >   IS_SMALLER                                               1000, !0
         15      > JMPNZ                                                    ~10, ->2
   22    16    > > RETURN                                                   1

Class Foo:
Function __construct:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/JAEjA
function name:  __construct
number of ops:  7
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   NEW                                              $1      'Bar'
          1        FETCH_THIS                                       $2      
          2        SEND_VAR_EX                                              $2
          3        DO_FCALL                                      0          
          4        ASSIGN_OBJ                                               'bar'
          5        OP_DATA                                                  $1
    6     6      > RETURN                                                   null

End of function __construct

End of class Foo.

Class Bar:
Function __construct:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/JAEjA
function name:  __construct
number of ops:  4
compiled vars:  !0 = $foo
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   10     0  E >   RECV_INIT                                        !0      null
   12     1        ASSIGN_OBJ                                               'foo'
          2        OP_DATA                                                  !0
   13     3      > RETURN                                                   null

End of function __construct

End of class Bar.

Generated using Vulcan Logic Dumper, using php 8.0.0


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