Re: Re: Php filter validate url

On Mon, Jun 27, 2011 at 11:34 AM, Jim Lucas <lists@cmsws.com> wrote: > On 6/27/2011 8:25 AM, Plamen Ivanov wrote: >> On Mon, Jun 27, 2011 at 11:14 AM, Shawn McKenzie <nospam@mckenzies.net> wrote: >>> On 06/27/2011 10:01 AM, Plamen Ivanov wrote: >>>> On Sun, Jun 26, 2011 at 5:44 PM, Shawn McKenzie <nospam@mckenzies.net> wrote: >>>>> >>>>> On 06/26/2011 12:31 PM, Adam Tong wrote: >>>>>> Hi, >>>>>> >>>>>> I wanted tu use php filters for validation to avoid regular expresions. >>>>>> Is it possible that FILTER_VALIDATE_URL only checks if the string has >>>>>> http:// and do not check for the format >>>>>> domain.something? >>>>>> ---- >>>>>> $url = 'http://wwwtestcom'; >>>>>> $url = filter_var($url,FILTER_VALIDATE_URL); >>>>>> echo $url; >>>>>> ----- >>>>>> >>>>>> Or I am doing something wrong >>>>>> >>>>>> Thank you >>>>> >>>>> Unless I'm totally misunderstanding what you want (validate that a >>>>> string starts with http://) try: >>>>> >>>>> if(strpos($url, 'http://') === 0) { >>>>>   //starts with http:// >>>>> } esle { >>>>>   // does not start with http:// >>>>> } >>>>> >>>>> -- >>>>> Thanks! >>>>> -Shawn >>>>> http://www.spidean.com >>>>> >>>>> -- >>>>> PHP General Mailing List (http://www.php.net/) >>>>> To unsubscribe, visit: >>>>> http://www.php.net/unsub.php >>>>> >>>> >>>> Another possible solution could be: >>>> >>>> $ary = explode('://', $url); >>>> if (1 >= count($ary)) { >>>>     echo 'No schema specified!'; >>>> } else { >>>>     // Schema specified. >>>>     // $ary[0] is the protocol >>>>     $allowed = array('http', 'https'); >>>>     if (FALSE == in_array($ary[0], $allowed) { >>>>         // Protocol not valid! >>>>         exit(1); // or return FALSE; whatever... >>>>     } >>>>     // $ary[1] is the uri, validate with filter_var(). >>>> } >>>> >>>> Hope this helps. >>> >>> May make more sense to use parse_url() than explode. >>> >>> -- >>> Thanks! >>> -Shawn >>> http://www.spidean.com >>> >> >> http://php.net/manual/en/function.parse-url.php >> "This function is not meant to validate the given URL..." >> >> I would use parse_url() after URL validation. >> > > Shawn meant to use parse_url() in place of your explode statement.  He didn't > say to use parse_url() as a method to validate the url. > > He said it would make more sense to do the following. > > Also, use strict type matching if you want to compare against boolean(FALSE) > > $allowed = array('http', 'https'); > > $scheme = parse_url($url, PHP_URL_SCHEME); > > if (FALSE === in_array($scheme, $allowed) { >  // Protocol not valid! >  exit(1); // or return FALSE; whatever... > } > > Seems a little less muddy to me. > > Jim Lucas > Makes sense now. Thanks guys.