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<?php $haystack = [0,0,0,1,1,0,1,1,0,0,1,1,0,0,1]; $needle = [1,1,0]; $needleCount = count($needle); $result = []; foreach ($haystack as $i => $straw) { $start = $i - $needleCount; if ( $start >= 0 && $needle === array_slice($haystack, $start, $needleCount) ) { $result[] = $straw; } } var_export($result);
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 6, Position 2 = 23
Branch analysis from position: 6
2 jumps found. (Code = 78) Position 1 = 7, Position 2 = 23
Branch analysis from position: 7
2 jumps found. (Code = 46) Position 1 = 12, Position 2 = 19
Branch analysis from position: 12
2 jumps found. (Code = 43) Position 1 = 20, Position 2 = 22
Branch analysis from position: 20
1 jumps found. (Code = 42) Position 1 = 6
Branch analysis from position: 6
Branch analysis from position: 22
Branch analysis from position: 19
Branch analysis from position: 23
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 23
filename:       /in/piUe9
function name:  (null)
number of ops:  28
compiled vars:  !0 = $haystack, !1 = $needle, !2 = $needleCount, !3 = $result, !4 = $straw, !5 = $i, !6 = $start
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    4     1        ASSIGN                                                   !1, <array>
    6     2        COUNT                                            ~9      !1
          3        ASSIGN                                                   !2, ~9
    7     4        ASSIGN                                                   !3, <array>
    8     5      > FE_RESET_R                                       $12     !0, ->23
          6    > > FE_FETCH_R                                       ~13     $12, !4, ->23
          7    >   ASSIGN                                                   !5, ~13
    9     8        SUB                                              ~15     !5, !2
          9        ASSIGN                                                   !6, ~15
   11    10        IS_SMALLER_OR_EQUAL                              ~17     0, !6
         11      > JMPZ_EX                                          ~17     ~17, ->19
   12    12    >   INIT_FCALL                                               'array_slice'
         13        SEND_VAR                                                 !0
         14        SEND_VAR                                                 !6
         15        SEND_VAR                                                 !2
         16        DO_ICALL                                         $18     
         17        IS_IDENTICAL                                     ~19     !1, $18
         18        BOOL                                             ~17     ~19
         19    > > JMPZ                                                     ~17, ->22
   14    20    >   ASSIGN_DIM                                               !3
         21        OP_DATA                                                  !4
    8    22    > > JMP                                                      ->6
         23    >   FE_FREE                                                  $12
   18    24        INIT_FCALL                                               'var_export'
         25        SEND_VAR                                                 !3
         26        DO_ICALL                                                 
         27      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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