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<?php $str = 'abc|;:d.^*+?$efg'; $str = preg_replace('/[\|;:\.\^\*\+\?\$]/', '', $str); var_dump($str === 'abcdefg');
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/hI7ed
function name:  (null)
number of ops:  12
compiled vars:  !0 = $str
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'abc%7C%3B%3Ad.%5E%2A%2B%3F%24efg'
    4     1        INIT_FCALL                                               'preg_replace'
          2        SEND_VAL                                                 '%2F%5B%5C%7C%3B%3A%5C.%5C%5E%5C%2A%5C%2B%5C%3F%5C%24%5D%2F'
          3        SEND_VAL                                                 ''
          4        SEND_VAR                                                 !0
          5        DO_ICALL                                         $2      
          6        ASSIGN                                                   !0, $2
    5     7        INIT_FCALL                                               'var_dump'
          8        IS_IDENTICAL                                     ~4      !0, 'abcdefg'
          9        SEND_VAL                                                 ~4
         10        DO_ICALL                                                 
         11      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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