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<?php if (preg_match('/^(0)\1*$/', '000000000000')) { echo 1; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 5, Position 2 = 6
Branch analysis from position: 5
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 6
filename:       /in/kPEaI
function name:  (null)
number of ops:  7
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL                                               'preg_match'
          1        SEND_VAL                                                 '%2F%5E%280%29%5C1%2A%24%2F'
          2        SEND_VAL                                                 '000000000000'
          3        DO_ICALL                                         $0      
          4      > JMPZ                                                     $0, ->6
    3     5    >   ECHO                                                     1
    4     6    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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