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<?php $vals = array( "[[aa]]", "/\\/\\", "&", "$^", "(!@", " ", "", ); $rx = '/^[-+=_.:;!?@#$%&*<>^"\'\\\\\\/\\(\\)\\[\\]\\{\\}a-z0-9]+$/i'; foreach ($vals as $v) { var_dump(preg_match($rx, $v)); }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 3, Position 2 = 12
Branch analysis from position: 3
2 jumps found. (Code = 78) Position 1 = 4, Position 2 = 12
Branch analysis from position: 4
1 jumps found. (Code = 42) Position 1 = 3
Branch analysis from position: 3
Branch analysis from position: 12
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 12
filename:       /in/RZeWS
function name:  (null)
number of ops:  14
compiled vars:  !0 = $vals, !1 = $rx, !2 = $v
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
   12     1        ASSIGN                                                   !1, '%2F%5E%5B-%2B%3D_.%3A%3B%21%3F%40%23%24%25%26%2A%3C%3E%5E%22%27%5C%5C%5C%2F%5C%28%5C%29%5C%5B%5C%5D%5C%7B%5C%7Da-z0-9%5D%2B%24%2Fi'
   13     2      > FE_RESET_R                                       $5      !0, ->12
          3    > > FE_FETCH_R                                               $5, !2, ->12
   14     4    >   INIT_FCALL                                               'var_dump'
          5        INIT_FCALL                                               'preg_match'
          6        SEND_VAR                                                 !1
          7        SEND_VAR                                                 !2
          8        DO_ICALL                                         $6      
          9        SEND_VAR                                                 $6
         10        DO_ICALL                                                 
   13    11      > JMP                                                      ->3
         12    >   FE_FREE                                                  $5
   15    13      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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