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<?php $mlbCities = array( 'Carolina', 'Atlanta', 'New Orleans', 'Philadelphia', 'St. Louis', 'Washington', 'Houston', 'Tennessee', 'New England', 'NY Jets', 'Cincinnati', 'Green Bay', 'Arizona', 'Jacksonville', 'Oakland', 'Kansas City', 'Minnesota', 'Detroit', 'Tampa Bay', 'Buffalo', 'Seattle', 'San Francisco', 'Pittsburgh', 'Chicago', 'Baltimore', 'San Diego', 'Cleveland', 'Denver', 'NY Giants', 'Dallas', 'Indianapolis', 'Miami' ); $string = 'San Francisco'; foreach($mlbCities as $bad) { $place = strpos($string, $bad); if (!empty($place)) { echo 'Bad word'; exit; } else { echo "Good"; } } ?>
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 3, Position 2 = 17
Branch analysis from position: 3
2 jumps found. (Code = 78) Position 1 = 4, Position 2 = 17
Branch analysis from position: 4
2 jumps found. (Code = 43) Position 1 = 12, Position 2 = 15
Branch analysis from position: 12
1 jumps found. (Code = 79) Position 1 = -2
Branch analysis from position: 15
1 jumps found. (Code = 42) Position 1 = 3
Branch analysis from position: 3
Branch analysis from position: 17
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 17
filename:       /in/fcsKm
function name:  (null)
number of ops:  19
compiled vars:  !0 = $mlbCities, !1 = $string, !2 = $bad, !3 = $place
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, <array>
   37     1        ASSIGN                                                   !1, 'San+Francisco'
   39     2      > FE_RESET_R                                       $6      !0, ->17
          3    > > FE_FETCH_R                                               $6, !2, ->17
   40     4    >   INIT_FCALL                                               'strpos'
          5        SEND_VAR                                                 !1
          6        SEND_VAR                                                 !2
          7        DO_ICALL                                         $7      
          8        ASSIGN                                                   !3, $7
   41     9        ISSET_ISEMPTY_CV                                 ~9      !3
         10        BOOL_NOT                                         ~10     ~9
         11      > JMPZ                                                     ~10, ->15
   42    12    >   ECHO                                                     'Bad+word'
   43    13      > EXIT                                                     
         14*       JMP                                                      ->16
   45    15    >   ECHO                                                     'Good'
   39    16      > JMP                                                      ->3
         17    >   FE_FREE                                                  $6
   48    18      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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