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bemol

30.04.2007, 17:23:23

Jak zrobić taki formularz, który będzie podmieniał wpisane znaki na inne i wyświetlał w tym samym formularzu?
przykład: rot13

Kicok

30.04.2007, 18:06:21

Do <textarea></textarea> wstawiasz kod, który sprawdza, czy wysłany został formularz. Jeśli tak, to wstawia w tym miejscu wysłane dane potraktowane funkcją str_rot13" title="Zobacz w manualu PHP" target="_manual oraz htmlspecialchars" title="Zobacz w manualu PHP" target="_manual

bemol

30.04.2007, 20:29:06

Jest ok. http://bemol.xt.pl/xxx/index.php

index.php

[PHP] pobierz, plaintext 
<?php
echo '<form action=index.php method=post>';
echo '<textarea name=text cols=110 rows=15>';
echo '</textarea><br />';
echo '<input type="submit" value="Szyfruj">';
echo '</form>';
$text = $_POST['text'];
 
echo '<textarea READONLY name=text cols=110 rows=15>';
echo str_rot13("$text");
echo '</textarea><br />';
?>
[PHP] pobierz, plaintext

A jak zrobić, żeby samemu ustalić podmiane?
Np.
a, to x
b, to t
itd...

Cienki1980

30.04.2007, 20:34:53

Musisz napisać samemu funkcję przesuwającą gdzie sam ustalisz, która litera będzie której odpowiadała. Jeżeli się nie mylę to chyba szyfr Cezara działa na takiej zasadzie.
Ustalasz przesunięcie i na podstawie tego szyfrujesz tekst.

bemol

30.04.2007, 20:39:32

będzie ciężko ale spróbuje

a może chociaż jakiś wzór?

Cienki1980

30.04.2007, 20:52:12

Cytat(bemol @ 30.04.2007, 21:39:32 )

będzie ciężko ale spróbuje

a może chociaż jakiś wzór?

wystarczy zajrzeć do manuala i sprawdzić co można zdziałać za pomocą funkcji str_replace()

bemol

1.05.2007, 03:02:46

Praktycznie wszystko już jest ok.
Jest tylko jedno "ale".
Wpisuje "Kamil" i zamienia na Qxwtż. A co zrobić, żeby po wpisaniu Qxwtż wyświetliło Kamil? Czyli na zasadzie tam i z powrotem, a nie tylko tam

index.php

[PHP] pobierz, plaintext 
<?php
echo '<form action=index.php method=post>';
echo '<textarea name=text cols=110 rows=15>';
echo '</textarea><br />';
echo '<input type="submit" value="Szyfruj">';
echo '</form>';
$text = $_POST['text'];
 
echo '<textarea READONLY name=text cols=110 rows=15>';
$znaki = array("q","w","e","r","t","y","u","i","o","p","a","s","d","f","g","h","j","k","l","z","x","c","v","b","n","m","ę","ó","ą","ś","ł","ż","ź","ć","ń","1","2","3","4","5","6","7","8","9","0","~","`","-","!","@","#","$","%","^","&","*","?","Q","W","E","R","T","Y","U","I","O","P","A","S","D","F","G","H","J","K","L","Z","X","C","V","B","N","M","Ę","Ó","Ą","Ś","Ł","Ż","Ź","Ć","Ń");
$podmiana = array("a","ą","B","c","ć","d","e","ę","f","g","h","i","j","/","l","ł","m","n","ń","O","ó","p","q","r","s","ś","t","u","v","w","x","y","z","ź","ż","!","@","#","$","%","^","&","*","~","`","-","_","=","+","|","k","?","<",">","3","2","1","Z","X","C","V","b","N","M","D","S","A","F","G","H","L","K","J","J","Q","W","E","R","T","Y","U","I","Ó","o","P","Ź","Ż","Ń","Ą","Ś","Ł","Ę");
$text_podmiana = str_replace($znaki, $podmiana, $text);
echo "$text_podmiana";
echo '</textarea><br />';
 
$text_podmiana = $text;
 
?>
[PHP] pobierz, plaintext

kresh

1.05.2007, 06:42:56

Skoro udało cię się jakiś tekst zakodować to teraz wystarczy wykonać operację odwrotną, czyli teraz tablica $znaki powinna zawierać elementy z tablicy $podmiana a tablica $podmiana elementy z tablicy $znaki.

rojmarek

1.05.2007, 08:15:28

Cytat(Cienki1980 @ 30.04.2007, 19:34:53 )

Musisz napisać samemu funkcję przesuwającą gdzie sam ustalisz, która litera będzie której odpowiadała. Jeżeli się nie mylę to chyba szyfr Cezara działa na takiej zasadzie.

bron Boze ;]
cezar zapisuje teskt w prostokącie (często moze to być kwadrat) i zczytuje literki po kolumnach a nie po wierszach...
rot13 z tego co widze, to bardzo słaby sposób szyfrowania,
a->n,
b->o,
c->p
...
n->a,
o->b,
itd..

bemol

1.05.2007, 09:26:58

rojmarek, czyli jak mogłaby wyglądać taka funkcja?
A poza tym dziękuje wszystkim za pomoc

Kicok

1.05.2007, 09:30:25

Cytat

Wpisuje "Kamil" i zamienia na Qxwtż. A co zrobić, żeby po wpisaniu Qxwtż wyświetliło Kamil? Czyli na zasadzie tam i z powrotem, a nie tylko tam

W takim razie upewnij się, że jeżeli "q" zamieniane jest na "a", to "a" zamieniane będzie na "q". Dla innych liter analogicznie.

rojmarek

1.05.2007, 09:36:46

Cytat(bemol @ 1.05.2007, 08:26:58 )

rojmarek, czyli jak mogłaby wyglądać taka funkcja?
A poza tym dziękuje wszystkim za pomoc

cóż... rot13 ma w nazwie napisane jak on to robi...

[PHP] pobierz, plaintext 
<?php
foreach($tekst as &$char){
  if($char<'n'){
	$char += 13;
  }
  elseif ($char<'z'){
	$char -= 13;
  }
}
?>
[PHP] pobierz, plaintext

nie pamietam czy po stringu da sie foreachem leciec, jak nie to for .. strlen(string)
to zwróci coś mniej-więcej jak rot13 przesuwa sie o 13 po prostu...
jak chcesz sie bawic w kodowanie tekstów to poszukaj w internecie, jest tego maaaasa...

bemol

1.05.2007, 10:47:54

rojmarek to za ciężkie dla mnie

mam problem, bo nie szyfruje, nie wiem dlaczego tak nagle, bo właściwie w pliku nic nie zmieniłem. http://bemol.xt.pl/xxx/index.php

index.php

[PHP] pobierz, plaintext 
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
  <meta http-equiv="content-type" content="text/html; charset=iso-8859-2">
  <title>Seriws szyfrujący znaki</title>
 <!-- <LINK rel="stylesheet" href="style.css" type="text/css" title="style"> -->
  </head>
  <body>
<?php
echo '<table align=center>';
echo '<tr>';
echo '<td align=center>';
echo "Nowy serwis, który szyfruje wpisane przez Ciebie znaki.";
echo '</td>';
echo '</tr>';
echo '<tr>';
echo '<td align=center>';
echo '<form action=index.php method=post>';
echo '<textarea name=text cols=65 rows=15>';
echo '</textarea><br />';
echo '</td>';
echo '</tr>';
echo '<tr align=center>';
echo '<td>';
echo '<input id=button type="submit" value="Szyfruj">';
echo '</form>';
echo '</td align=center>';
echo '</tr>';
echo '<tr>';
echo '<td align=center>';
echo '<textarea READONLY name=text cols=65 rows=10>';
$znaki = array("a","ą","b","c","ć","d","e","ę","f","g","h","i","j","k","l","ł","m","n","ń","o","ó","p","q","r","s","ś","t","u","v","w","x","y","z","ż","ź","A","Ą","B","C","Ć","D","E","Ę","F","G","H","I","J","K","L","Ł","M","N","Ń","O","Ó","P","Q","R","S","Ś","T","U","V","W","X","Y","Z","Ż","Ź");
$znaki = array("ź","ż","z","y","x","w","v","u","t","ś","s","r","q","p","ó","o","ń","n","m","ł","l","k","j","i","h","g","f","ę","e","d","ć","c","b","ą","a","A","Ą","B","C","Ć","D","E","Ę","F","G","H","I","J","K","L","Ł","M","N","Ń","O","Ó","P","Q","R","S","Ś","T","U","V","W","X","Y","Z","Ż","Ź");
$text_podmiana = str_replace($znaki, $podmiana, $text);
echo "$text_podmiana";
echo '</textarea><br />';
echo '</td>';
echo '</tr>';
echo '</table>';
 
$text_podmiana = $text;
$text = $_POST['text'];
?>
  </body>
</html>
[PHP] pobierz, plaintext

kresh

1.05.2007, 12:26:33

Nie szyfruje bo

[PHP] pobierz, plaintext 
<?php
$znaki = array("a","ą","b","c","ć","d","e","ę","f","g","h","i","j","k","l","ł","m","n","ń","o","ó","p","q","r","s","ś","t","u","v","w","x","y","z","ż","ź","A","Ą","B","C","Ć","D","E","Ę","F","G","H","I","J","K","L","Ł","M","N","Ń","O","Ó","P","Q","R","S","Ś","T","U","V","W","X","Y","Z","Ż","Ź");
$znaki = array("ź","ż","z","y","x","w","v","u","t","ś","s","r","q","p","ó","o","ń","n","m","ł","l","k","j","i","h","g","f","ę","e","d","ć","c","b","ą","a","A","Ą","B","C","Ć","D","E","Ę","F","G","H","I","J","K","L","Ł","M","N","Ń","O","Ó","P","Q","R","S","Ś","T","U","V","W","X","Y","Z","Ż","Ź");
$text_podmiana = str_replace($znaki, $podmiana, $text);
//a gdzie $podmiana?
?>
[PHP] pobierz, plaintext

bemol

5.05.2007, 21:37:48

kurcze działa, ale nie podmienia tak jak powinien :/
ehhh...

czy ktoś wie jak zrobić, żeby wyświetlało się w tym samym formularzu?

www0_0

5.05.2007, 21:47:05

Zrobić to w JS bo PHP działa po stronie serwera, a formularz znajduje się u klienta. Lub przeładowywać stronę, i w opcji value podać tekst po zaszyfrowaniu.

To jest wersja lo-fi głównej zawartości. Aby zobaczyć pełną wersję z większą zawartością, obrazkami i formatowaniem proszę kliknij tutaj.