3v4l.org

run code in 300+ PHP versions simultaneously
<?php // SETUP CODE class A { function __construct($val) { $this->val = $val; } } $objs = [ new A(3), new A(5), new A(2), new A(8), new A(1), ]; // AMAZING max_by IMPL :P $res = array_reduce($objs, function ($c, $o) { var_dump($c);exit; $p = $c ? $c->val : 0; $c = max($o->val, $p); return $o->val == $p ? $o : $c; }); var_dump($res);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/O68FW
function name:  (null)
number of ops:  31
compiled vars:  !0 = $objs, !1 = $res
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   11     0  E >   NEW                                              $2      'A'
          1        SEND_VAL_EX                                              3
          2        DO_FCALL                                      0          
          3        INIT_ARRAY                                       ~4      $2
   12     4        NEW                                              $5      'A'
          5        SEND_VAL_EX                                              5
          6        DO_FCALL                                      0          
          7        ADD_ARRAY_ELEMENT                                ~4      $5
   13     8        NEW                                              $7      'A'
          9        SEND_VAL_EX                                              2
         10        DO_FCALL                                      0          
         11        ADD_ARRAY_ELEMENT                                ~4      $7
   14    12        NEW                                              $9      'A'
         13        SEND_VAL_EX                                              8
         14        DO_FCALL                                      0          
         15        ADD_ARRAY_ELEMENT                                ~4      $9
   15    16        NEW                                              $11     'A'
         17        SEND_VAL_EX                                              1
         18        DO_FCALL                                      0          
         19        ADD_ARRAY_ELEMENT                                ~4      $11
   10    20        ASSIGN                                                   !0, ~4
   19    21        INIT_FCALL                                               'array_reduce'
         22        SEND_VAR                                                 !0
         23        DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2FO68FW%3A19%240'
   24    24        SEND_VAL                                                 ~14
         25        DO_ICALL                                         $15     
   19    26        ASSIGN                                                   !1, $15
   25    27        INIT_FCALL                                               'var_dump'
         28        SEND_VAR                                                 !1
         29        DO_ICALL                                                 
         30      > RETURN                                                   1

Function %00%7Bclosure%7D%2Fin%2FO68FW%3A19%240:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 79) Position 1 = -2
filename:       /in/O68FW
function name:  {closure}
number of ops:  26
compiled vars:  !0 = $c, !1 = $o, !2 = $p
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   19     0  E >   RECV                                             !0      
          1        RECV                                             !1      
   20     2        INIT_FCALL                                               'var_dump'
          3        SEND_VAR                                                 !0
          4        DO_ICALL                                                 
          5      > EXIT                                                     
   21     6*       JMPZ                                                     !0, ->10
          7*       FETCH_OBJ_R                                      ~4      !0, 'val'
          8*       QM_ASSIGN                                        ~5      ~4
          9*       JMP                                                      ->11
         10*       QM_ASSIGN                                        ~5      0
         11*       ASSIGN                                                   !2, ~5
   22    12*       INIT_FCALL                                               'max'
         13*       FETCH_OBJ_R                                      ~7      !1, 'val'
         14*       SEND_VAL                                                 ~7
         15*       SEND_VAR                                                 !2
         16*       DO_ICALL                                         $8      
         17*       ASSIGN                                                   !0, $8
   23    18*       FETCH_OBJ_R                                      ~10     !1, 'val'
         19*       IS_EQUAL                                                 !2, ~10
         20*       JMPZ                                                     ~11, ->23
         21*       QM_ASSIGN                                        ~12     !1
         22*       JMP                                                      ->24
         23*       QM_ASSIGN                                        ~12     !0
         24*       RETURN                                                   ~12
   24    25*     > RETURN                                                   null

End of function %00%7Bclosure%7D%2Fin%2FO68FW%3A19%240

Class A:
Function __construct:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/O68FW
function name:  __construct
number of ops:  4
compiled vars:  !0 = $val
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   RECV                                             !0      
    6     1        ASSIGN_OBJ                                               'val'
          2        OP_DATA                                                  !0
    7     3      > RETURN                                                   null

End of function __construct

End of class A.

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
178.89 ms | 1400 KiB | 19 Q