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<?php var_dump(preg_match('^[+]?[()/0-9. -]{9,}$', '606932687', $matches));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/U9rPG
function name:  (null)
number of ops:  9
compiled vars:  !0 = $matches
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   3     0  E >   INIT_FCALL                                               'var_dump'
         1        INIT_FCALL                                               'preg_match'
         2        SEND_VAL                                                 '%5E%5B%2B%5D%3F%5B%28%29%2F0-9.+-%5D%7B9%2C%7D%24'
         3        SEND_VAL                                                 '606932687'
         4        SEND_REF                                                 !0
         5        DO_ICALL                                         $1      
         6        SEND_VAR                                                 $1
         7        DO_ICALL                                                 
         8      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 7.3.0