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<?php $i = 0; function funsimple() { global $i; if (($i++ % 2_000) === 0) { var_dump($i); } funsimple(); } function fun() { array_map(function ($str) { global $i; if (($i++ % 2_000) === 0) { var_dump($i); } fun(); }, ['x']); } $fx = function () use (&$fx, &$i) { array_map(function ($str) use ($fx, &$i) { if (($i++ % 2_000) === 0) { var_dump($i); } $fx(); }, ['x']); }; // funsimple(); // this produces correctly OOM error // this produces segfault fun(); // $fx(); // using anonymous function, the behaviour is the same

Abusive script

This script was stopped while abusing our resources

Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/jJD62
function name:  (null)
number of ops:  8
compiled vars:  !0 = $i, !1 = $fx
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 0
   24     1        DECLARE_LAMBDA_FUNCTION                          ~3      [0]
          2        BIND_LEXICAL                                             ~3, !1
          3        BIND_LEXICAL                                             ~3, !0
          4        ASSIGN                                                   !1, ~3
   37     5        INIT_FCALL                                               'fun'
          6        DO_FCALL                                      0          
   38     7      > RETURN                                                   1


Dynamic Functions:
Dynamic Function 0
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/jJD62
function name:  {closure}
number of ops:  10
compiled vars:  !0 = $fx, !1 = $i
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   24     0  E >   BIND_STATIC                                              !0
          1        BIND_STATIC                                              !1
   25     2        INIT_FCALL                                               'array_map'
          3        DECLARE_LAMBDA_FUNCTION                          ~2      [0]
          4        BIND_LEXICAL                                             ~2, !0
          5        BIND_LEXICAL                                             ~2, !1
   31     6        SEND_VAL                                                 ~2
          7        SEND_VAL                                                 <array>
   25     8        DO_ICALL                                                 
   32     9      > RETURN                                                   null


Dynamic Functions:
Dynamic Function 0
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 7, Position 2 = 10
Branch analysis from position: 7
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 10
filename:       /in/jJD62
function name:  {closure}
number of ops:  13
compiled vars:  !0 = $str, !1 = $fx, !2 = $i
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   25     0  E >   RECV                                             !0      
          1        BIND_STATIC                                              !1
          2        BIND_STATIC                                              !2
   26     3        POST_INC                                         ~3      !2
          4        MOD                                              ~4      ~3, 2000
          5        IS_IDENTICAL                                             ~4, 0
          6      > JMPZ                                                     ~5, ->10
   27     7    >   INIT_FCALL                                               'var_dump'
          8        SEND_VAR                                                 !2
          9        DO_ICALL                                                 
   30    10    >   INIT_DYNAMIC_CALL                                        !1
         11        DO_FCALL                                      0          
   31    12      > RETURN                                                   null

End of Dynamic Function 0

End of Dynamic Function 0

Function funsimple:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 5, Position 2 = 8
Branch analysis from position: 5
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 8
filename:       /in/jJD62
function name:  funsimple
number of ops:  11
compiled vars:  !0 = $i
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    6     0  E >   BIND_GLOBAL                                              !0, 'i'
    7     1        POST_INC                                         ~1      !0
          2        MOD                                              ~2      ~1, 2000
          3        IS_IDENTICAL                                             ~2, 0
          4      > JMPZ                                                     ~3, ->8
    8     5    >   INIT_FCALL                                               'var_dump'
          6        SEND_VAR                                                 !0
          7        DO_ICALL                                                 
   10     8    >   INIT_FCALL_BY_NAME                                       'funsimple'
          9        DO_FCALL                                      0          
   11    10      > RETURN                                                   null

End of function funsimple

Function fun:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/jJD62
function name:  fun
number of ops:  6
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   14     0  E >   INIT_FCALL                                               'array_map'
          1        DECLARE_LAMBDA_FUNCTION                          ~0      [0]
   21     2        SEND_VAL                                                 ~0
          3        SEND_VAL                                                 <array>
   14     4        DO_ICALL                                                 
   22     5      > RETURN                                                   null


Dynamic Functions:
Dynamic Function 0
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 6, Position 2 = 9
Branch analysis from position: 6
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 9
filename:       /in/jJD62
function name:  {closure}
number of ops:  12
compiled vars:  !0 = $str, !1 = $i
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   14     0  E >   RECV                                             !0      
   15     1        BIND_GLOBAL                                              !1, 'i'
   16     2        POST_INC                                         ~2      !1
          3        MOD                                              ~3      ~2, 2000
          4        IS_IDENTICAL                                             ~3, 0
          5      > JMPZ                                                     ~4, ->9
   17     6    >   INIT_FCALL                                               'var_dump'
          7        SEND_VAR                                                 !1
          8        DO_ICALL                                                 
   20     9    >   INIT_FCALL_BY_NAME                                       'fun'
         10        DO_FCALL                                      0          
   21    11      > RETURN                                                   null

End of Dynamic Function 0

End of function fun

Generated using Vulcan Logic Dumper, using php 8.0.0


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