Re: [PHP-DB] how to explain such a regular syntax

On 13 August 2010 08:47, win.a <[email protected]> wrote:
> Its was picked from drupal source code and i don't know how does it works.
> This is the code :
> preg_match('/^\[?(?:[a-z0-9-:\]_]+\.?)+$/', $host);

This has got nothing to do with php or php-db - your question is on
regular expressions. Try consulting
http://www.regular-expressions.info/ or get a good book on the topic
like Mastering Regular Expresssions by Jeffrey Friedl.

Regards
Peter

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