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<?php $tag = 'p'; var_dump(preg_match('/^[\\w-:]+$/', $tag));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/vD5O2
function name:  (null)
number of ops:  6
compiled vars:  !0 = $tag
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, 'p'
    5     1        INIT_FCALL                                                   'var_dump'
          2        FRAMELESS_ICALL_2                preg_match          ~2      '%2F%5E%5B%5Cw-%3A%5D%2B%24%2F', !0
          3        SEND_VAL                                                     ~2
          4        DO_ICALL                                                     
          5      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


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