Re: Regular expression - URL validator

On 8/28/07, Wagner Garcia Campagner <wagnergc@itautec.com> wrote: > > Thanks Jim, > > Your sugestion worked perfect for me!! > > I have another question: > > After i validate this URL i want to put a link with this URL in my page. > > The problem is that if the URL is like (www.aol.com), when i create the > link, this URL is appended with the URL of my site. The result is a link > pointing to: http://<mywebsite>/www.aol.com > > But if the URL is like (http://aol.com), then the link is created correct. > > Is there a way to avoid the first situation... so the link is created > correct? > > Thanks again, > Wagner. > > > > -----Original Message----- > From: Jim Lucas [mailto:lists@cmsws.com] > Sent: segunda-feira, 27 de agosto de 2007 17:36 > To: PHP General; wagnergc@itautec.com > Subject: Re: [PHP] Regular expression - URL validator > > > Wagner Garcia Campagner wrote: > > Hello, > > > > I found this regular expression on a web site. > > It is basicaly an URL validator. > > > > I'm trying to implement this in my web site, but i receive errors. > > > > I think this is a PERL REGEX so what should i do to make it work in php? > > > > > > $valid = > > > > (preg_match('^((((H|h)(T|t)|(F|f))(T|t)(P|p)((S|s)?))\://)?(www.|[a-zA-Z0-9] > > > > .)[a-zA-Z0-9\-\.]+\.[a-zA-Z]{2,6}(\:[0-9]{1,5})*(/($|[a-zA-Z0-9\.\,\;\?\'\\\ > > +&amp;%\$#\=~_\-]+))*$', $_POST['website'])); > > This should be preg_match('/.../i', $_POST['website']) > > your regex should look something like this. > > > ^((ftp|(http(s)?))://)?(\.?([a-z0-9-]+))+\.[a-z]{2,6}(:[0-9]{1,5})?(/[a-zA-Z > 0-9.,;\?|\'+&%\$#=~_-]+)*$ > > So, put it all together and it should look like this. > > <?php > > $url = "...PUT YOUR TEST URL HERE..."; > > if ( > > preg_match('!^((ftp|(http(s)?))://)?(\.?([a-z0-9-]+))+\.[a-z]{2,6}(:[0-9]{1, > 5})?(/[a-zA-Z0-9.,;\?|\'+&%\$#=~_-]+)*$!i', > $url) ) { > echo "Matched"; > } else { > echo "Did not match"; > } > > > > > > > > if ($valido == 0) { > > something here; > > } > > else { > > something else here; > > } > > > > > > Thanks a lot in advance, > > Wagner. > > > > > > -- > Jim Lucas > > "Some men are born to greatness, some achieve greatness, > and some have greatness thrust upon them." > > Twelfth Night, Act II, Scene V > by William Shakespeare > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > > you must use http://www.aol.com not www.aol.com. coz the later is not a valid url. The protocol is not specified there. and if you use www.aol.comis your href of a tags, the browser will automatically add your current web address as prefix as if its a relative url. if your site is http://www.example.com/folder/site.html and if you use href="/www.aol.com" it will show http://www.example.com/ www.aol.com if you use href="www.aol.com" it will show http://www.example.com/folder/<http://www.aol.com/> www.aol.com you have to use href="http://www.aol.com" the absolute one. -- shout at http://shiplu.awardspace.com/ Available for Hire/Contract/Full Time