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<?php $original = []; foreach (range(1, 20_000) as $iteration) { $original[] = [ 'id' => str_repeat("{$iteration}.", 4), 'name' => 'name', ]; } var_dump( array_reduce( $original, static function (array $result, array $item): array { if (str_starts_with($item['id'], '11')) { $result[] = $item; } return $result; }, [] ) );

Abusive script

This script was stopped while abusing our resources

Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 6, Position 2 = 18
Branch analysis from position: 6
2 jumps found. (Code = 78) Position 1 = 7, Position 2 = 18
Branch analysis from position: 7
1 jumps found. (Code = 42) Position 1 = 6
Branch analysis from position: 6
Branch analysis from position: 18
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 18
filename:       /in/ccIn9
function name:  (null)
number of ops:  29
compiled vars:  !0 = $original, !1 = $iteration
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, <array>
    4     1        INIT_FCALL                                                   'range'
          2        SEND_VAL                                                     1
          3        SEND_VAL                                                     20000
          4        DO_ICALL                                             $3      
          5      > FE_RESET_R                                           $4      $3, ->18
          6    > > FE_FETCH_R                                                   $4, !1, ->18
    6     7    >   INIT_FCALL                                                   'str_repeat'
          8        NOP                                                          
          9        FAST_CONCAT                                          ~6      !1, '.'
         10        SEND_VAL                                                     ~6
         11        SEND_VAL                                                     4
         12        DO_ICALL                                             $7      
         13        INIT_ARRAY                                           ~8      $7, 'id'
    7    14        ADD_ARRAY_ELEMENT                                    ~8      'name', 'name'
    5    15        ASSIGN_DIM                                                   !0
    7    16        OP_DATA                                                      ~8
    4    17      > JMP                                                          ->6
         18    >   FE_FREE                                                      $4
   11    19        INIT_FCALL                                                   'var_dump'
   12    20        INIT_FCALL                                                   'array_reduce'
   13    21        SEND_VAR                                                     !0
   14    22        DECLARE_LAMBDA_FUNCTION                              ~9      [0]
   19    23        SEND_VAL                                                     ~9
   20    24        SEND_VAL                                                     <array>
   12    25        DO_ICALL                                             $10     
   20    26        SEND_VAR                                                     $10
   11    27        DO_ICALL                                                     
   22    28      > RETURN                                                       1


Dynamic Functions:
Dynamic Function 0
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 5, Position 2 = 7
Branch analysis from position: 5
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 7
filename:       /in/ccIn9
function name:  {closure:/in/ccIn9:14}
number of ops:  11
compiled vars:  !0 = $result, !1 = $item
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   14     0  E >   RECV                                                 !0      
          1        RECV                                                 !1      
   15     2        FETCH_DIM_R                                          ~2      !1, 'id'
          3        FRAMELESS_ICALL_2                str_starts_with      ~3      ~2, '11'
          4      > JMPZ                                                         ~3, ->7
   16     5    >   ASSIGN_DIM                                                   !0
          6        OP_DATA                                                      !1
   18     7    >   VERIFY_RETURN_TYPE                                           !0
          8      > RETURN                                                       !0
   19     9*       VERIFY_RETURN_TYPE                                           
         10*     > RETURN                                                       null

End of Dynamic Function 0

Generated using Vulcan Logic Dumper, using php 8.5.0


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