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<?php $src = '//player.vimeo.com/video/36899035'; preg_match('#vimeo\.com(?:\w*\/)*(\d{6,10})#i',$src,$output); var_dump($output);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/UHjmd
function name:  (null)
number of ops:  10
compiled vars:  !0 = $src, !1 = $output
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, '%2F%2Fplayer.vimeo.com%2Fvideo%2F36899035'
    3     1        INIT_FCALL                                               'preg_match'
          2        SEND_VAL                                                 '%23vimeo%5C.com%28%3F%3A%5Cw%2A%5C%2F%29%2A%28%5Cd%7B6%2C10%7D%29%23i'
          3        SEND_VAR                                                 !0
          4        SEND_REF                                                 !1
          5        DO_ICALL                                                 
    4     6        INIT_FCALL                                               'var_dump'
          7        SEND_VAR                                                 !1
          8        DO_ICALL                                                 
          9      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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