Bottyz Posted October 1, 2010 Share Posted October 1, 2010 Hi all, I'm very new to regex and cannot get my head around all the characters. I've been testing out a few things to work it out but am struggling with one in particular. I've created a news system for my website in php and on the main page you only have a truncated description of each article but with 'read more' links to the full article. The 'read more' links like news.php?article= Where it has the ?article= it has a meaning full seo friendly title such as "new-website" or "news-page-launched" etc.... This link then brings up that full article. My idea is to use a preg_match expression that makes sure all that is in the link is letters and the - symbol. This is to make sure no-one can insert code here and attack the site. Is this a bad idea or can anyone help? Link to comment https://forums.phpfreaks.com/topic/214909-pattern-for-alpha-and-symbol-only/ Share on other sites More sharing options...
Bottyz Posted October 1, 2010 Author Share Posted October 1, 2010 i've figured that this should be ok for use... Can anyone confirm? function validate_art_url($str) { pregmatch('^[a-z]+[\-]*$', $str) ==0; } Link to comment https://forums.phpfreaks.com/topic/214909-pattern-for-alpha-and-symbol-only/#findComment-1117988 Share on other sites More sharing options...
sasa Posted October 2, 2010 Share Posted October 2, 2010 <?php$test = 'ann+jokn';if(!preg_match('/[^a-z-]/', $test)) echo'OK';else echo'WRONG';?> Link to comment https://forums.phpfreaks.com/topic/214909-pattern-for-alpha-and-symbol-only/#findComment-1118233 Share on other sites More sharing options...
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