How to replace a letter in a string with a new letter that will not be updated

Question

Lets say I have some code:

$text = $_POST[\'secret\'];

$replaces = array(
        \'a\' => \'s\',
        \'b\' => \'n\',
        \'c\' => \'v\',
          


        

Answer 1

In the PHP Manual it's clearly explained your problem, at the end of the page they advice to use strtr() which does exactly what you want.

Replace

  $text = str_replace(array_keys($replaces),array_values($replaces),$text);

with

  $text = strtr($text,$replaces);

which does exactly what you want, it replaces one character with another character.

The documentation of strtr() is here: http://www.php.net/manual/en/function.strtr.php