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<?php function createInstance() { return new class {}; } $startMemory = memory_get_peak_usage(); for ($i = 0; $i < 10000; $i++) { createInstance(); } var_dump((memory_get_peak_usage() - $startMemory) / 1024**2); // MB
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 8
Branch analysis from position: 8
2 jumps found. (Code = 44) Position 1 = 10, Position 2 = 5
Branch analysis from position: 10
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 5
2 jumps found. (Code = 44) Position 1 = 10, Position 2 = 5
Branch analysis from position: 10
Branch analysis from position: 5
filename:       /in/41UGH
function name:  (null)
number of ops:  18
compiled vars:  !0 = $startMemory, !1 = $i
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    7     0  E >   INIT_FCALL                                               'memory_get_peak_usage'
          1        DO_ICALL                                         $2      
          2        ASSIGN                                                   !0, $2
    8     3        ASSIGN                                                   !1, 0
          4      > JMP                                                      ->8
    9     5    >   INIT_FCALL                                               'createinstance'
          6        DO_FCALL                                      0          
    8     7        PRE_INC                                                  !1
          8    >   IS_SMALLER                                               !1, 10000
          9      > JMPNZ                                                    ~7, ->5
   11    10    >   INIT_FCALL                                               'var_dump'
         11        INIT_FCALL                                               'memory_get_peak_usage'
         12        DO_ICALL                                         $8      
         13        SUB                                              ~9      $8, !0
         14        DIV                                              ~10     ~9, 1048576
         15        SEND_VAL                                                 ~10
         16        DO_ICALL                                                 
         17      > RETURN                                                   1

Function createinstance:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/41UGH
function name:  createInstance
number of ops:  5
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   DECLARE_ANON_CLASS                               2       
          1        NEW                                              $1      $0
          2        DO_FCALL                                      0          
          3      > RETURN                                                   $1
    5     4*     > RETURN                                                   null

End of function createinstance

Class class@anonymous: [no user functions]

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
153.71 ms | 1399 KiB | 18 Q