Comments on snippet: 'Count Varable character lengh'

kirik said on 02/Sep/2009

Wed, 02 Sep 2009 23:52:54 UTC

Actually you should use regular expression for username validation: `if (preg_match('/^[a-z]{8,}$/i', $username)) { echo 'OK'; } else { exit('Wrong username'); }`

scopefragger said on 03/Sep/2009

Thu, 03 Sep 2009 04:19:11 UTC

true, however when typing this i was short of examples so username lengh validation was a nice friendly introduction to strlen. More to the point a good example of strlen would be the function that will be used in http://www.scopesden.co.uk/code_get_feed.php?Content_ref=14 to evaluate the size of the text feed and to manipulate the number of rows required so that 1, the page isnt epic huge for a single liner code and secondly so that a 200 line code isnt squeesed into a 1 row box ( there extreamaties but you get the point ). Other than that thogh i havent realy used strlen.

scopefragger said on 03/Sep/2009

Thu, 03 Sep 2009 04:19:25 UTC

bucabay said on 03/Sep/2009

Thu, 03 Sep 2009 09:41:00 UTC

If you're using PHP4, using strlen() will only work for non-multibyte encoded strings. If you have a multibyte encoding such as UTF-8, then mb_strlen() should be used, or a compatible function. Almost all the PHP4 string functions suffer from this problem. nb: "Varable" is spelled variable. [Bucabay][1] [1]: http://www.bucabay.com/" "Bucabay"