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<?php $expr = <<<REGEX / \b # word boundary [a-z]{2,3} # 2 or 3 letters \s* # optional spaces [0-9]{2,3} # 2 or 3 digits \s* # optional spaces [a-z]? # optional single letter \b # word boundary /ix REGEX; $strs = array( 'Honda : CRF 2005 honda crf 50 dirt bike pit bike', 'Honda : XR 2001 honda xr 400 r', 'Honda : CRF 2005 honda crf50 dirt bike pit bike', 'Honda : XR 2001 honda xr400r', ); foreach ($strs as $str) { if (preg_match($expr, $str, $matches)) { var_dump($matches[0]); } }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 3, Position 2 = 15
Branch analysis from position: 3
2 jumps found. (Code = 78) Position 1 = 4, Position 2 = 15
Branch analysis from position: 4
2 jumps found. (Code = 43) Position 1 = 10, Position 2 = 14
Branch analysis from position: 10
1 jumps found. (Code = 42) Position 1 = 3
Branch analysis from position: 3
Branch analysis from position: 14
Branch analysis from position: 15
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 15
filename:       /in/5i69W
function name:  (null)
number of ops:  17
compiled vars:  !0 = $expr, !1 = $strs, !2 = $str, !3 = $matches
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, '%2F%0A+++%5Cb+++++++++++%23+word+boundary%0A+++%5Ba-z%5D%7B2%2C3%7D+++%23+2+or+3+letters%0A+++%5Cs%2A++++++++++%23+optional+spaces%0A+++%5B0-9%5D%7B2%2C3%7D+++%23+2+or+3+digits%0A+++%5Cs%2A++++++++++%23+optional+spaces%0A+++%5Ba-z%5D%3F+++++++%23+optional+single+letter%0A+++%5Cb+++++++++++%23+word+boundary%0A%2Fix'
   15     1        ASSIGN                                                   !1, <array>
   22     2      > FE_RESET_R                                       $6      !1, ->15
          3    > > FE_FETCH_R                                               $6, !2, ->15
   23     4    >   INIT_FCALL                                               'preg_match'
          5        SEND_VAR                                                 !0
          6        SEND_VAR                                                 !2
          7        SEND_REF                                                 !3
          8        DO_ICALL                                         $7      
          9      > JMPZ                                                     $7, ->14
   24    10    >   INIT_FCALL                                               'var_dump'
         11        FETCH_DIM_R                                      ~8      !3, 0
         12        SEND_VAL                                                 ~8
         13        DO_ICALL                                                 
   22    14    > > JMP                                                      ->3
         15    >   FE_FREE                                                  $6
   26    16      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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