Most efficient way to get next letter in the alphabet using PHP

Posted by Mathias Bynens on Stack Overflow See other posts from Stack Overflow or by Mathias Bynens
Published on 2010-04-20T07:34:14Z Indexed on 2010/04/20 7:43 UTC
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Given any character from a to z, what is the most efficient way to get the next letter in the alphabet using PHP?

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