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<?php for ($i = 0; $i < 10; $i++) { eval('return function() {};'); gc_collect_cycles(); $new = memory_get_usage(); if (isset($old)) { echo ($new - $old) . "\n"; } $old = $new; }
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 15
Branch analysis from position: 15
2 jumps found. (Code = 44) Position 1 = 17, Position 2 = 2
Branch analysis from position: 17
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 2
2 jumps found. (Code = 43) Position 1 = 10, Position 2 = 13
Branch analysis from position: 10
2 jumps found. (Code = 44) Position 1 = 17, Position 2 = 2
Branch analysis from position: 17
Branch analysis from position: 2
Branch analysis from position: 13
filename:       /in/3p4sl
function name:  (null)
number of ops:  18
compiled vars:  !0 = $i, !1 = $new, !2 = $old
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 0
          1      > JMP                                                      ->15
    4     2    >   INCLUDE_OR_EVAL                                          'return+function%28%29+%7B%7D%3B', EVAL
    5     3        INIT_FCALL                                               'gc_collect_cycles'
          4        DO_ICALL                                                 
    6     5        INIT_FCALL                                               'memory_get_usage'
          6        DO_ICALL                                         $6      
          7        ASSIGN                                                   !1, $6
    7     8        ISSET_ISEMPTY_CV                                         !2
          9      > JMPZ                                                     ~8, ->13
    8    10    >   SUB                                              ~9      !1, !2
         11        CONCAT                                           ~10     ~9, '%0A'
         12        ECHO                                                     ~10
   10    13    >   ASSIGN                                                   !2, !1
    3    14        PRE_INC                                                  !0
         15    >   IS_SMALLER                                               !0, 10
         16      > JMPNZ                                                    ~13, ->2
   11    17    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
142.61 ms | 1399 KiB | 17 Q