Jump to content

convert letter to number to another letter.


HDFilmMaker2112

Recommended Posts

Looking for the best way to convert a string to a bunch of numbers and then those numbers to a new string.

 

 

Something like this:

$string="APWE";

A into 05, 05 into Y.

P into 36, 36 into A

W into 23, 23 into e

E into 13, 13 into P

 

So it will go from APWE to 05362313 to YAeP

 

Looking at str_split($numbers, 2) to get from the numbers to the letters, but do I need to have a full library of each letters corresponding number and then the corresponding letter to those numbers to convert back to the new letters?

Link to comment
Share on other sites

Here's what I have right now:

 

$input = "YAPePAsdf";
$input = str_split($input);

foreach($input as $key=>$char){ 
if(isset($letter[$char])){
$input[$key] = $letter[$char];
}
}

$output = implode("-", $input);

echo $output;

 

above that is a bunch of code assigning a letter to a number in this format:

 

$letter['letter']=number 1-52;

 

This isn't displaying anything.

Link to comment
Share on other sites

How about

<?php
$letters_numbers = array('A'=>'05','P'=>'36','W'=>'23','E'=>'13');
$numbers_letters = array('05'=>'Y','36'=>'A','23'=>'e','13'=>'P');
$str = 'APWE';
$new_str = '';
foreach (str_split($str) as $char) {
    $new_str .= $numbers_letters[$letters_numbers[$char]];
}
echo $new_str;
?>

Ken

Link to comment
Share on other sites

I expanded this out to the whole alphabet lower and capital case + 0-9.

 

And it's now converting a 10 character string to 8 characters.

 

<?php
require_once 'llib.php';
require_once 'nlib.php';
$str = 'Asda12Ka12';
$new_str = '';
foreach (str_split($str) as $char) {
    $new_str .= $number[$letter[$char]];
}
echo $new_str;
?>

 

 

I've tracked it down to the lowercase a

$letter['a']=01;

 

$number['01']="0";

 

so instead of inserting 0 into the new string it just doesn't insert anything.

I end up with this:

 

q9eRSvRS

 

It should be:

 

q9e0RSv0RS

Link to comment
Share on other sites

This thread is more than a year old. Please don't revive it unless you have something important to add.

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.