note 75383 deleted from function.str-rot13 by nlopess
| From: | nlopess@php.net | Date: | Sun, 27 May 2007 19:02:40 +0000 |
| Subject: | note 75383 deleted from function.str-rot13 by nlopess | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-126967@lists.php.net to get a copy of this message | ||
Note Submitter: Paul Gregg, Qube@EfNet #PHP
----
http://www.pgregg.com/projects/php/code/rot_n.php
Compat function if you have older PHP:
if (!function_exists('str_rot13')) {
Function str_rot13($str) {
return preg_replace('/([a-z])/ei',
'chr(((ord(\'$0\')-(ord(\'$0\')>96?97:65)+13)%26)
+(ord(\'$0\')>96?97:65))', $str);
}
}
Or if you want to be able to rotate by some digit other than 13:
function rot_n($str, $num=13) {
return preg_replace('/([a-z])/ei',
'chr(((ord(\'$0\')-(ord(\'$0\')>96?97:65)+$num)%26)
+(ord(\'$0\')>96?97:65))', $str);
}