3v4l.org

run code in 300+ PHP versions simultaneously
<?php $records = [ 'nonsense', 'f', 'h', 1, 2, 3, 4, 'f', 'nonsense', 'h', 1, 2, 'f', 'h', 1, 2, 3, 'f', 'nonsense', 'nonsense', 'nonsense', 'h', 1, 2, 3, 4, 'f', 'h', 1, 'f', 'nonsense' ]; $groups = []; foreach ($records as $record) { if ($record === 'h') { $group = []; } $group[] = $record; if ($record === 'f') { $groups[] = $group; } } var_dump($groups); echo "\n------------------------------------------------------\n\n"; unset($group); $groups = []; foreach ($records as $record) { if ($record === 'h') { $group = []; } if (! isset($group)) { continue; } $group[] = $record; if ($record === 'f') { $groups[] = $group; unset($group); } } var_dump($groups);
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 3, Position 2 = 14
Branch analysis from position: 3
2 jumps found. (Code = 78) Position 1 = 4, Position 2 = 14
Branch analysis from position: 4
2 jumps found. (Code = 43) Position 1 = 6, Position 2 = 7
Branch analysis from position: 6
2 jumps found. (Code = 43) Position 1 = 11, Position 2 = 13
Branch analysis from position: 11
1 jumps found. (Code = 42) Position 1 = 3
Branch analysis from position: 3
Branch analysis from position: 13
Branch analysis from position: 7
Branch analysis from position: 14
2 jumps found. (Code = 77) Position 1 = 22, Position 2 = 38
Branch analysis from position: 22
2 jumps found. (Code = 78) Position 1 = 23, Position 2 = 38
Branch analysis from position: 23
2 jumps found. (Code = 43) Position 1 = 25, Position 2 = 26
Branch analysis from position: 25
2 jumps found. (Code = 43) Position 1 = 29, Position 2 = 30
Branch analysis from position: 29
1 jumps found. (Code = 42) Position 1 = 22
Branch analysis from position: 22
Branch analysis from position: 30
2 jumps found. (Code = 43) Position 1 = 34, Position 2 = 37
Branch analysis from position: 34
1 jumps found. (Code = 42) Position 1 = 22
Branch analysis from position: 22
Branch analysis from position: 37
Branch analysis from position: 26
Branch analysis from position: 38
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 38
Branch analysis from position: 14
filename:       /in/Y5XWv
function name:  (null)
number of ops:  43
compiled vars:  !0 = $records, !1 = $groups, !2 = $record, !3 = $group
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
   17     1        ASSIGN                                                   !1, <array>
   18     2      > FE_RESET_R                                       $6      !0, ->14
          3    > > FE_FETCH_R                                               $6, !2, ->14
   19     4    >   IS_IDENTICAL                                             !2, 'h'
          5      > JMPZ                                                     ~7, ->7
   20     6    >   ASSIGN                                                   !3, <array>
   23     7    >   ASSIGN_DIM                                               !3
          8        OP_DATA                                                  !2
   25     9        IS_IDENTICAL                                             !2, 'f'
         10      > JMPZ                                                     ~10, ->13
   26    11    >   ASSIGN_DIM                                               !1
         12        OP_DATA                                                  !3
   18    13    > > JMP                                                      ->3
         14    >   FE_FREE                                                  $6
   30    15        INIT_FCALL                                               'var_dump'
         16        SEND_VAR                                                 !1
         17        DO_ICALL                                                 
   33    18        ECHO                                                     '%0A------------------------------------------------------%0A%0A'
   34    19        UNSET_CV                                                 !3
   35    20        ASSIGN                                                   !1, <array>
   36    21      > FE_RESET_R                                       $14     !0, ->38
         22    > > FE_FETCH_R                                               $14, !2, ->38
   37    23    >   IS_IDENTICAL                                             !2, 'h'
         24      > JMPZ                                                     ~15, ->26
   38    25    >   ASSIGN                                                   !3, <array>
   41    26    >   ISSET_ISEMPTY_CV                                 ~17     !3
         27        BOOL_NOT                                         ~18     ~17
         28      > JMPZ                                                     ~18, ->30
   42    29    > > JMP                                                      ->22
   44    30    >   ASSIGN_DIM                                               !3
         31        OP_DATA                                                  !2
   46    32        IS_IDENTICAL                                             !2, 'f'
         33      > JMPZ                                                     ~20, ->37
   47    34    >   ASSIGN_DIM                                               !1
         35        OP_DATA                                                  !3
   48    36        UNSET_CV                                                 !3
   36    37    > > JMP                                                      ->22
         38    >   FE_FREE                                                  $14
   52    39        INIT_FCALL                                               'var_dump'
         40        SEND_VAR                                                 !1
         41        DO_ICALL                                                 
         42      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
152.29 ms | 1400 KiB | 15 Q