Re: Regex for Validating URL

On Tue, 7 Sep 2004 10:58:48 +0300, Burhan Khalid <phplist@meidomus.com> wrote: > -----Original Message----- > From: Nick Wilson [mailto:nick@stylesheet.org] > Sent: Thursday, September 02, 2004 11:59 AM > > Hi all, > > yeah, i know, i did do quite a bit of searching but I just cant find it... > > Does anyone have the regex to make sure an http address is full and without > error? like http://www.example.com > > http://www.php.net/parse_url should do what you require. If > all you want to > do is filter out the different parts of the url and check if they exist or > not. Consider what you'd mark as a full url, do you want to accept ftp:// and such links as well.. quite generic, I'd go for smth like: /^([a-z]+):\/\/(([\w\.]+)\.([a-z]{2,3}))(:(\d+))?(\/.*)?$/ Which would give you: Array ( [0] => ftp://www.example.com.com.uk:88/something/to/remember [1] => ftp [2] => www.example.com.com.uk [3] => www.example.com.com [4] => uk [5] => :88 [6] => 88 [7] => /something/to/remember ) Here're seme things I didn't take into account: * double dots (www...example..com) * double slashes (www.example.com//asdfasf//asdfasf) * check for protocol validity, might wanna change the first part to (ftp|http|chrome|.. any protocol you want to accept) * I left everything after the first slash completely to the imagination of your input data - this can contain pretty much anything anyways * login details (user:password@domain.example.com) If you want to have a full regex that is really complete, check out: http://www.foad.org/~abigail/Perl/url3.pl, and execute it .. (linked from http://www.foad.org/~abigail/Perl/url2.html) Enjoy!