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<?php if(preg_match('/\$[1-9]{1}\$s/',"$1$s")){ echo 'true'; } else { echo 'false'; } ?>
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 7, Position 2 = 9
Branch analysis from position: 7
1 jumps found. (Code = 42) Position 1 = 10
Branch analysis from position: 10
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 9
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/gBA5F
function name:  (null)
number of ops:  11
compiled vars:  !0 = $s
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'preg_match'
          1        SEND_VAL                                                 '%2F%5C%24%5B1-9%5D%7B1%7D%5C%24s%2F'
          2        NOP                                                      
          3        FAST_CONCAT                                      ~1      '%241', !0
          4        SEND_VAL                                                 ~1
          5        DO_ICALL                                         $2      
          6      > JMPZ                                                     $2, ->9
    4     7    >   ECHO                                                     'true'
          8      > JMP                                                      ->10
    6     9    >   ECHO                                                     'false'
    8    10    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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