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<?php $phones = [ '2345678', '00000000', '00100000', '123456789', '000000000', '12345678901234567', ]; foreach ($phones as $phone) { echo (preg_match('/^(?=0*[1-9])\d{8,16}$/', $phone) ? 'Pass' : 'Fail') . "\n"; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 2, Position 2 = 11
Branch analysis from position: 2
2 jumps found. (Code = 78) Position 1 = 3, Position 2 = 11
Branch analysis from position: 3
2 jumps found. (Code = 43) Position 1 = 5, Position 2 = 7
Branch analysis from position: 5
1 jumps found. (Code = 42) Position 1 = 8
Branch analysis from position: 8
1 jumps found. (Code = 42) Position 1 = 2
Branch analysis from position: 2
Branch analysis from position: 7
1 jumps found. (Code = 42) Position 1 = 2
Branch analysis from position: 2
Branch analysis from position: 11
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 11
filename:       /in/u5E6p
function name:  (null)
number of ops:  13
compiled vars:  !0 = $phones, !1 = $phone
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, <array>
   12     1      > FE_RESET_R                                           $3      !0, ->11
          2    > > FE_FETCH_R                                                   $3, !1, ->11
   13     3    >   FRAMELESS_ICALL_2                preg_match          ~4      '%2F%5E%28%3F%3D0%2A%5B1-9%5D%29%5Cd%7B8%2C16%7D%24%2F', !1
          4      > JMPZ                                                         ~4, ->7
          5    >   QM_ASSIGN                                            ~5      'Pass'
          6      > JMP                                                          ->8
          7    >   QM_ASSIGN                                            ~5      'Fail'
          8    >   CONCAT                                               ~6      ~5, '%0A'
          9        ECHO                                                         ~6
   12    10      > JMP                                                          ->2
         11    >   FE_FREE                                                      $3
   14    12      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


preferences:
155.24 ms | 1708 KiB | 13 Q