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<?php $tests = array('a', 'Z'); foreach ($tests as $packChar) { $packString = $packChar.'*'.$packChar.'*'.$packChar.'*'; $data = pack($packString, "foo", "bar", "baz"); echo "packed is: \n"; var_dump($data); $y = unpack('a3omg/a3lol/a3bbq' , $data ); echo "\nPHP 5.5 a\n"; var_dump($y); $y = unpack('Z3omg/Z3lol/Z3bbq' , $data ); echo "\nPHP 5.5 Z\n"; var_dump($y); }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 2, Position 2 = 39
Branch analysis from position: 2
2 jumps found. (Code = 78) Position 1 = 3, Position 2 = 39
Branch analysis from position: 3
1 jumps found. (Code = 42) Position 1 = 2
Branch analysis from position: 2
Branch analysis from position: 39
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 39
filename:       /in/jArjZ
function name:  (null)
number of ops:  41
compiled vars:  !0 = $tests, !1 = $packChar, !2 = $packString, !3 = $data, !4 = $y
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    5     1      > FE_RESET_R                                       $6      !0, ->39
          2    > > FE_FETCH_R                                               $6, !1, ->39
    6     3    >   CONCAT                                           ~7      !1, '%2A'
          4        CONCAT                                           ~8      ~7, !1
          5        CONCAT                                           ~9      ~8, '%2A'
          6        CONCAT                                           ~10     ~9, !1
          7        CONCAT                                           ~11     ~10, '%2A'
          8        ASSIGN                                                   !2, ~11
    8     9        INIT_FCALL                                               'pack'
         10        SEND_VAR                                                 !2
         11        SEND_VAL                                                 'foo'
         12        SEND_VAL                                                 'bar'
         13        SEND_VAL                                                 'baz'
         14        DO_ICALL                                         $13     
         15        ASSIGN                                                   !3, $13
   10    16        ECHO                                                     'packed+is%3A+%0A'
   11    17        INIT_FCALL                                               'var_dump'
         18        SEND_VAR                                                 !3
         19        DO_ICALL                                                 
   13    20        INIT_FCALL                                               'unpack'
         21        SEND_VAL                                                 'a3omg%2Fa3lol%2Fa3bbq'
         22        SEND_VAR                                                 !3
         23        DO_ICALL                                         $16     
         24        ASSIGN                                                   !4, $16
   14    25        ECHO                                                     '%0APHP+5.5+a%0A'
   15    26        INIT_FCALL                                               'var_dump'
         27        SEND_VAR                                                 !4
         28        DO_ICALL                                                 
   17    29        INIT_FCALL                                               'unpack'
         30        SEND_VAL                                                 'Z3omg%2FZ3lol%2FZ3bbq'
         31        SEND_VAR                                                 !3
         32        DO_ICALL                                         $19     
         33        ASSIGN                                                   !4, $19
   18    34        ECHO                                                     '%0APHP+5.5+Z%0A'
   19    35        INIT_FCALL                                               'var_dump'
         36        SEND_VAR                                                 !4
         37        DO_ICALL                                                 
    5    38      > JMP                                                      ->2
         39    >   FE_FREE                                                  $6
   20    40      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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