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<html> <body> <form method="post" action="<?php echo $_SERVER['PHP_SELF'];?>"> Name: <input type="text" name="fname"> <input type="submit"> </form> <?php if ($_SERVER["REQUEST_METHOD"] == "POST") { // collect value of input field $name = $_REQUEST['fname']; if (empty($name)) { echo "Name is empty"; } else { echo $name; } } ?> </body> </html>
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 9, Position 2 = 17
Branch analysis from position: 9
2 jumps found. (Code = 43) Position 1 = 14, Position 2 = 16
Branch analysis from position: 14
1 jumps found. (Code = 42) Position 1 = 17
Branch analysis from position: 17
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 16
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 17
filename:       /in/oiFVo
function name:  (null)
number of ops:  19
compiled vars:  !0 = $name
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    1     0  E >   ECHO                                                     '%3Chtml%3E%0A%3Cbody%3E%0A%0A%3Cform+method%3D%22post%22+action%3D%22'
    4     1        FETCH_R                      global              ~1      '_SERVER'
          2        FETCH_DIM_R                                      ~2      ~1, 'PHP_SELF'
          3        ECHO                                                     ~2
          4        ECHO                                                     '%22%3E%0A++Name%3A+%3Cinput+type%3D%22text%22+name%3D%22fname%22%3E%0A++%3Cinput+type%3D%22submit%22%3E%0A%3C%2Fform%3E%0A%0A'
   10     5        FETCH_R                      global              ~3      '_SERVER'
          6        FETCH_DIM_R                                      ~4      ~3, 'REQUEST_METHOD'
          7        IS_EQUAL                                                 ~4, 'POST'
          8      > JMPZ                                                     ~5, ->17
   12     9    >   FETCH_R                      global              ~6      '_REQUEST'
         10        FETCH_DIM_R                                      ~7      ~6, 'fname'
         11        ASSIGN                                                   !0, ~7
   13    12        ISSET_ISEMPTY_CV                                         !0
         13      > JMPZ                                                     ~9, ->16
   14    14    >   ECHO                                                     'Name+is+empty'
         15      > JMP                                                      ->17
   16    16    >   ECHO                                                     !0
   20    17    >   ECHO                                                     '%0A%3C%2Fbody%3E%0A%3C%2Fhtml%3E'
   22    18      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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