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<?php $word = 'Sing'; $urls = ['http://I_like_to_sing.mp3', 'http://Another_song.mp3']; $regex = "/https?:\/\/(?=.*$word).+\.mp3/i"; print_r(array_filter($urls, function ($v) use ($regex) { return preg_match($regex, $v); }));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/MpRbO
function name:  (null)
number of ops:  16
compiled vars:  !0 = $word, !1 = $urls, !2 = $regex
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, 'Sing'
    4     1        ASSIGN                                                       !1, <array>
    5     2        ROPE_INIT                                         3  ~6      '%2Fhttps%3F%3A%5C%2F%5C%2F%28%3F%3D.%2A'
          3        ROPE_ADD                                          1  ~6      ~6, !0
          4        ROPE_END                                          2  ~5      ~6, '%29.%2B%5C.mp3%2Fi'
          5        ASSIGN                                                       !2, ~5
    6     6        INIT_FCALL                                                   'print_r'
          7        INIT_FCALL                                                   'array_filter'
          8        SEND_VAR                                                     !1
          9        DECLARE_LAMBDA_FUNCTION                              ~9      [0]
         10        BIND_LEXICAL                                                 ~9, !2
         11        SEND_VAL                                                     ~9
         12        DO_ICALL                                             $10     
         13        SEND_VAR                                                     $10
         14        DO_ICALL                                                     
         15      > RETURN                                                       1


Dynamic Functions:
Dynamic Function 0
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/MpRbO
function name:  {closure:/in/MpRbO:6}
number of ops:  5
compiled vars:  !0 = $v, !1 = $regex
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
          0  E >   RECV                                                 !0      
          1        BIND_STATIC                                                  !1
          2        FRAMELESS_ICALL_2                preg_match          ~2      !1, !0
          3      > RETURN                                                       ~2
          4*     > RETURN                                                       null

End of Dynamic Function 0

Generated using Vulcan Logic Dumper, using php 8.5.0


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