Karl DeSaulniers <karl@xxxxxxxxxxxxxxx> wrote: > >On Oct 21, 2012, at 5:01 AM, Maciek Sokolewicz wrote: > >> On 21-10-2012 01:11, Karl DeSaulniers wrote: >>>>> Thanks for the response. Yes, for the US I plan on calculating by >>>>> state, but >>>>> this website is not geared to just the US. >>>>> So I am looking for a solution that lets me also calculate by >>>>> country/region. >>>>> Was looking on google and found geoip, but not sure if this will >do >>>>> the job >>>>> I am looking for. >>>>> Anyone with experience on geoip that can send pointers? >>>>> >>>>> Thanks, >>>>> >>>>> >>>>> Best, >>>>> Karl DeSaulniers >>>>> Design Drumm >>>>> http://designdrumm.com >>>> >>>> >>>> Geo IP is based on IP, and I must warn you that IP data is not >>>> always >>>> accurate. Especially here in Europe, companies that are based in >>>> multiple countries sometimes only register their IPs in a single >>>> country, and share them between all the countries they are active >>>> in. >>>> This will give you wrong data from GeoIP. The time difference will >>>> only be 1 hour at max, but still. >>> >>> >>> That was what my own suspicions were leading to. >>> I am familiar with the fact that ips can be spoofed. >>> Thanks for the corroboration. >>> >>> Best, >>> >>> Karl DeSaulniers >>> Design Drumm >>> http://designdrumm.com >>> >> >> As Bart said, IP is not ideal for this situation. >> >> Since you do have information about the location of that person (as >> in country and possible state), you can find out the timezone via a >> static database. >> >> The HTML5 geolocation tool is nice, and would certainly help a lot! >> However, be aware of the fact that it only works if there is the >> device on which the browser runs actually has the ability to find >> out its location. Many smartphones have GPS chips, but most PCs >> don't. Asking a PC "where are you located?" the PC will answer "How >> should I know?". >> >> Luckily for you, the way of country and state is pretty easy. I've >> handed you a list to find it in the USA. For most countries in the >> world, there's a simple 1:1 mapping of timezone and country >(http://en.wikipedia.org/wiki/List_of_time_zones_by_country >> ), there are however 21 countries which have multiple timezones. In >> these cases, you'll need extra information to be able to distinguish > >> between them. >> >> For the USA, you already have a way. >> For (ex-)colonical islands and such (such as for France), you could >> always add them to the country list: >> - France >> - France (Marquesas Islands) >> - France (Gambier) >> etc. >> Thus treating them as separate countries for your timezone db. >> >> In Russia, Canada, Australia, New Zealand, Brasil, Indonesia, >> Kiribati, Mexico,Congo, Ecuador, Micronesia, Kazakhstan and Mongolia > >> you'll need to know their province / state to more accurately assess > >> the ideal timezone. >> >> So for most countries, it's a simple 1:1 translation. For the above >> countries, you'll need some extra info, and translate further based >> on that. You should be able to find the info required yourself, it >> just takes a while to collect it. >> >> Alternatively, and this is the most simple way; since you're asking >> people for their country and such, simply also ask them about their >> timezone. Don't bother automating and putting a heck of a lot of >> time into hard to realize solutions, when you can ask a very simple >> and easy-to-answer question to the browser instead. :) >> >> - Tul > > >Yes, I had thought about asking the user his/her timezone, but being >that the product will be bought by some people who may have no idea, I > >figured I would try and see if I can set it up myself. >Maybe if the country has a province, i could ask the user then what >province and get my 1:2 that way. If it is a country I can get the >timezone for, just skip that question. >Thanks for the thoughts! > >Best, > >Karl DeSaulniers >Design Drumm >http://designdrumm.com Don't most browsers include this information in the HTTP headers? -- Sent from my Android phone with K-9 Mail. Please excuse my brevity. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
