die-kuh-macht-muh: Hilfe bei einem Codier-skript

Beitrag lesen

Hallo! Mein Code bis jetzt (ACHTUNG: Bin totaler Anfänger, also bitte nicht wundern):

<?php  
  
        //Variablen  
	$text = $_REQUEST['codier-text'];  
	$coding = array($code);  
	$coding['A'] = "X";  
	$coding['B'] = "Y";  
	$coding['C'] = "Z";  
	$coding['D'] = "A";  
	$coding['E'] = "B";  
	$coding['F'] = "C";  
	$coding['G'] = "D";  
	$coding['H'] = "E";  
	$coding['I'] = "F";  
	$coding['J'] = "G";  
	$coding['K'] = "H";  
	$coding['L'] = "I";  
	$coding['M'] = "J";  
	$coding['N'] = "K";  
	$coding['O'] = "L";  
	$coding['P'] = "M";  
	$coding['Q'] = "N";  
	$coding['R'] = "O";  
	$coding['S'] = "P";  
	$coding['T'] = "Q";  
	$coding['U'] = "R";  
	$coding['V'] = "S";  
	$coding['W'] = "T";  
	$coding['X'] = "U";  
	$coding['Y'] = "V";  
	$coding['Z'] = "W";  
  
	//schau was drinsteht  
	$newtext = str_replace(?, $coding, $text);  
	print $newtext;  
  
?>  

~~~~~~html
  
<html>  
	<form>  
		<textarea name="codier-text">  
		</textarea>  
		<input type="submit" />  
	</form>  
</html>

Mein Gedanke war's, den text aus der textarea zu requesten, die buchstaben dann gegen die aus dem array auszutauschen...

Hilfeeeee! Bitte! mfg die-kuh-macht-muh