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<?php $line = "string string 4-string string string 12345 string 678249 string "; if (preg_match('/\b\d{4,}\b/', $line, $matches)) { var_dump($matches); }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 7, Position 2 = 10
Branch analysis from position: 7
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 10
filename:       /in/49hD7
function name:  (null)
number of ops:  11
compiled vars:  !0 = $line, !1 = $matches
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, 'string+string+4-string+string+string+12345+string+678249+string+'
    4     1        INIT_FCALL                                                   'preg_match'
          2        SEND_VAL                                                     '%2F%5Cb%5Cd%7B4%2C%7D%5Cb%2F'
          3        SEND_VAR                                                     !0
          4        SEND_REF                                                     !1
          5        DO_ICALL                                             $3      
          6      > JMPZ                                                         $3, ->10
    5     7    >   INIT_FCALL                                                   'var_dump'
          8        SEND_VAR                                                     !1
          9        DO_ICALL                                                     
    6    10    > > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


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