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

Class Foo:
Function __construct:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/nTUbH
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/nTUbH
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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