Suchen - Ersetzen

naja ... jeder hat mal ne "schwache" Minute...

UUUps... Scheisse, sorry...

danke.

<?php

$text="HALLO";

$new_text=str_replace("A","a",$text);
$new_text=str_replace("B","b",$text);
$new_text=str_replace("C","c",$text);
$new_text=str_replace("D","d",$text);
$new_text=str_replace("E","e",$text);
$new_text=str_replace("F","f",$text);
$new_text=str_replace("G","g",$text);
$new_text=str_replace("H","h",$text);
$new_text=str_replace("I","i",$text);
$new_text=str_replace("J","j",$text);
$new_text=str_replace("K","k",$text);
$new_text=str_replace("L","l",$text);
$new_text=str_replace("M","m",$text);
$new_text=str_replace("N","n",$text);
$new_text=str_replace("O","o",$text);
$new_text=str_replace("P","p",$text);
$new_text=str_replace("Q","q",$text);
$new_text=str_replace("R","r",$text);
$new_text=str_replace("S","s",$text);
$new_text=str_replace("T","t",$text);
$new_text=str_replace("U","u",$text);
$new_text=str_replace("V","v",$text);
$new_text=str_replace("W","w",$text);
$new_text=str_replace("X","x",$text);
$new_text=str_replace("Y","y",$text);
$new_text=str_replace("Z","z",$text);

echo $new_text;

?>

Normalerweise erwarte ich jetzt 'hallo', aber es kommt nur 'HALLO'. Wieder unverändert.

@Arni:
Deine Argumentstion ist manchmal etwas undurchsichtig...

aber cool oder

Schon. Aber sie hilft mir nicht. Prost.

so kommt schonmal was anderes raus.

und nun denken

<?php

$text="HALLO";

$text=str_replace("A","a",$text);
$text=str_replace("B","b",$text);
$text=str_replace("C","c",$text);
$text=str_replace("D","W",$text);
$text=str_replace("E","V",$text);
$text=str_replace("F","U",$text);
$text=str_replace("G","T",$text);
$text=str_replace("H","S",$text);
$text=str_replace("I","R",$text);
$text=str_replace("J","Q",$text);
$text=str_replace("K","P",$text);
$text=str_replace("L","l",$text);
$text=str_replace("M","N",$text);
$text=str_replace("N","M",$text);
$text=str_replace("O","o",$text);
$text=str_replace("P","K",$text);
$text=str_replace("Q","J",$text);
$text=str_replace("R","I",$text);
$text=str_replace("S","H",$text);
$text=str_replace("T","G",$text);
$text=str_replace("U","F",$text);
$text=str_replace("V","E",$text);
$text=str_replace("W","D",$text);
$text=str_replace("X","C",$text);
$text=str_replace("Y","B",$text);
$text=str_replace("Z","A",$text);

echo $text;

?>

mach doch mal n paar testausgaben, mensch!!

und guck dir deine variablen an!

OKAY: Versuch á la Arni:

<?php

$text="HIII";

$text=str_replace("A","a",$text);
$text=str_replace("B","b",$text);
$text=str_replace("C","c",$text);
$text=str_replace("D","W",$text);
$text=str_replace("E","V",$text);
$text=str_replace("F","U",$text);
$text=str_replace("G","T",$text);
$text=str_replace("H","S",$text);
$text=str_replace("I","R",$text);
$text=str_replace("J","Q",$text);
$text=str_replace("K","P",$text);
$text=str_replace("L","l",$text);
$text=str_replace("M","N",$text);
$text=str_replace("N","M",$text);
$text=str_replace("O","o",$text);
$text=str_replace("P","K",$text);
$text=str_replace("Q","J",$text);
$text=str_replace("R","I",$text);
$text=str_replace("S","H",$text);
$text=str_replace("T","G",$text);
$text=str_replace("U","F",$text);
$text=str_replace("V","E",$text);
$text=str_replace("W","D",$text);
$text=str_replace("X","C",$text);
$text=str_replace("Y","B",$text);
$text=str_replace("Z","A",$text);

echo $text;

?>

Ausgabe: HIII...

sag mal verstehst Du das echt nicht ??

Du ersetzt doch I durch R
und dann R wieder durch I

also was soll denn da rauskommen ??



und so läuft aber auch keine Verschlüsselung, mal nebenbei

hmm ... rein vom logischen würde ich jetzt sagen "HIII" ... aber wie war das gleich mit programmieren und logik ?!