Session Start: Tue Sep 12 12:07:53 2000
*** Now talking in #netsurprise
*** Topic is 'WEBMASTERS ONLY!!! Welcome to the Net Surprise Adult Webmaster IRC Chatroom.'
*** Set by SurpriseBot on Sat Sep 09 03:47:33
-SurpriseBot- Welcome - Net Surprise IRC - thud.net channel #netsurprise
<TDavid> ok :)
<_Splitz_> julloooooo
<TDavid> what's up, splitz?
<Electra> This stuff may be too technical for me..but thought I would give it a try.
<_Splitz_> just getting home and relaxing
<TDavid> Electra, well you ask me whatever you feel like :)
<sharkysr> When you noted that we don't need all this garbage, were you referring to the  < Doctype.....   or to all of the html header information in general?
<Electra> Thank you TD
<TDavid> yeah, sharkysr
<sharkysr> You can do it Electra.
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<TimeWalker> how techie you feel like going td?
<SusieS> hello
<sharkysr> Yea what td?  all of the html?
<TDavid> Right now everything we are doing ... well time is incrementing right?
<TDavid> no, sharkysr just the tag at the very top is more or less a description tag for the HTML
<sharkysr> OK, thanks
<TDavid> document type is for the most part useless
<TDavid> kind of like "author" and some of the other tags you can add to html
<Electra> Excuse me..is there somewhere I can see this as you are doing it?
<TDavid> they don't hurt anything being there, but you don't "have" to have them
<TDavid> http://www.adultnetsurprise.com/learning_center/php/php_week_2.html
<SusieS> just decreases relevencey for spiders
<Electra> thanks
<TDavid> Timewalker, we can go as advanced or as basic as people here would like :)
<TDavid> can somebody else log this for me as I am having some problems with mIRC here :( and i want to make sure this is logged
<SusieS> td I am logging I believe let me check thgough
<TimeWalker> ok I restart my log
<TimeWalker> so I can find this
<TDavid> thank you :))
<SusieS> yup logging :)
<TimeWalker> Well this is a server type thing actually
<TDavid> http://www.tdscripts.com/time_dates.html  <--- here is a url to the UNIX timestamp
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<TDavid> hmm, well you can ask tw and if i know it, i'll be happy to answer. I'm not really much knowledgable on the server, i must admit
<sharkysr> how do you log TD?
<TDavid> as i was saying, does everybody here know what a timestamp is?
<TDavid> er, a UNIX timestamp
<TimeWalker> Been looking at switching my .htaccess to mysql
<TimeWalker> is there anything I so look out for in that area?
<TDavid> 965587619 <--- a unix timestamp
<TDavid> hmmm, i hear that is pretty good to do, tw
<TDavid> that long string of numbers is the number of seconds since 1970
<TDavid> january 1, 1970
<TDavid> as we are here talking the time is increasing of course ... and this is how we figure out time elapsing between two points
<TDavid> we grab the timestamp say when something happens ... and then we grab the "now" time and compare the two
<TDavid> fundamentally this is how every program that calculates time operates
<TDavid> $now = time(); <-- gives you the current timestamp
<TDavid> so if you wrote: <? $now = time(); echo($now); ?> 
<TDavid> that would print the current UNIX timestamp
<TDavid> if you click on my example you'll see the timestamp is increasing
<_Splitz_> TDavid, you mean epoch seconds?
<TDavid> http://www.tdscripts.com/cgi-bin/timetest.cgi
<TDavid> splitz the epoch will be January 1, 2038 at midnight
<TDavid> that is when the REAL y2k will happen, IMHO
<_Splitz_> I thought seconds from Jan 1 1970 were called Epoch seconds
<TDavid> well in the instance of keeping people from getting confused a second is a second :)
<_Splitz_> heh
<TDavid> if you want to call it an epoch second, that's fine with me :))
<_Splitz_> Mac's are fine until the year 32,745 or some shit
<TDavid> macs have a few things up on PC brains it seems :)
<_Splitz_> yup yup ;)
<TDavid> 968782964 <--- current time stamp
<TDavid> number of seconds since Jan 1, 1970 ... so let's say we want to figure out how long since something happens
<sharkysr> So if you want something to occure every 24 hours, you could check the time stamp, and each time it increment 86,400 seconds then it's time to do it again, right?
<_Splitz_> yup or you could crontab a script to run at a specific time daily
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<MissGwendolyn> Hello everyone =)
<TDavid> yeah daily tasks are best run by cron, but even cron operates off of a timestamp fundamentally
<_Splitz_> hi gwen
<sharkysr> Yea Splitz, I use the crontab, but in speaking in basic terms, that is what the crontab does anyway, right?
<SusieS> ok well techniquely speaking your way over my head already LOL not hard I am 4'10" hehe
<TDavid> hehe, susieS what part do you not understand?
<TDavid> 968782964 <--- current time stamp = number of seconds since January 1, 1970
<_Splitz_> sharkysr, sort of, crontab runs 24/7 and has a pending DB of when to do things
<SusieS> yeah yeah got that but where did you get the number from
<TDavid> you can grab a unix timestamp by doing this:
<TDavid> $now = time();
<TDavid> and php will return the current unix timestamp
<SusieS> now you add that to what?
<_Splitz_> eliminates the load/quit time of your program repeatedly when it needs not do anything
<SusieS> ahhhhhhhhhhhhhhhhh the PHP thing I still haven't gotten lesson one to work yet LOL
<TDavid> well what gave you pause in the first lesson, feel free to ask any question you didn't understand
<TDavid> I am happy to try and help you through it
<TDavid> $now <--- a variable ... = <--- an assignment time() <--- a php "function" which will return the current UNIX timestamp
<TDavid> now we could say this ...
<TDavid> $past = 968782964;
<TDavid> $now = 968783310;
<SusieS> td I posted what I had done in  the message board
<TDavid> now what would be the mathematical computation to determine how many seconds have passed?
<SusieS> and mine looked nothing like the others
<SusieS> I guess I didn't understand how to start it all off
<TDavid> i saw it, and I commented on it. did you get chance to read my comments yet?
<SusieS> not yet looking now
<TDavid> well you know how to start an HTML tag of course, php must be enclosed in a tag too
<TDavid> <? <--- start a php script ?> <--- end a php script
<TDavid> everything in between will be code or comments to be run through the parser
<TDavid> who can post the expression to determine $elapsed?
<TDavid> $elapsed = ???
<TDavid> $past = 968782964;
<TDavid> $now = 968783310;
<sharkysr> Basically - UNIX started a timer running at 12:00:01 on January 1, 1970, and it is still running today, so that time stamp is just the total number of seconds since they started the timer, right TD?
<TDavid> correct
<sharkysr> $elapsed=$now-$past
<MissGwendolyn> bbl
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<TDavid> yup
<TDavid> now we have the number of seconds so we can convert back into minutes or hours or days
<TDavid> so if we wanted to "do something after 24 hours had gone by" what would be the mathematical computation?
<SusieS> ok so read that now 
<sharkysr> $elapsed/56,400
<sharkysr> 86,400
<TDavid> yes 
<TDavid> if ($elapsed >= 86400) { do this; }  
<TDavid> if you wanted to say delete all posts on a messageboard older than 1 year ago, see how it could be done now?
<sharkysr> then reset $past
<sharkysr> yea, that should be pretty easy
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<sharkysr> 86,400*365
<TDavid> if ($elapsed >= 31104000) { do this }
<TDavid> yeah you got it, my calculator doesn't go up that high hehe
<TimeWalker> A sign in a Japanese hotel 
<TDavid> not enough digits!
<TimeWalker> "You are invited to take advantage of the chambermaid." 
<TimeWalker> oops
<TDavid> if ($elapsed >= (86400*365)) { do this } <-- prolly easier
<TDavid> now there are built in functions in PHP to take a UNIX timestamp and turn it into a normal date
<TDavid> that function is of course called date()
<TDavid> the syntax is as follows:  date($format, $timestamp);
<TDavid> so if we want to display the date something happened from a timestamp we don't have to do the whole chore of calculating the years from the seconds just to display a date
<TDavid> but with the information you have now, I'm sure you could figure out HOW to do it
<sharkysr> not really
<sharkysr> I don't understand the syntax
<TDavid> well what do we know about the timestamp?
<SusieS> :( still didn't work  
<TDavid> when did it start counting?
<sharkysr> it is a big number
<sharkysr> we know that
<TDavid> well this is mathematical
<sharkysr> then it should be easy
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<TDavid> what was the UNIX timestamp on January 2, 1970?
<TDavid> at midnight
<TDavid> 86400
<TDavid> ?
<sharkysr> no
<TDavid> yes
<sharkysr> 172800
<TDavid> The timer started at zero January 1, 1970 at midnight?
<TDavid> so midnight the next day is 24 hours
<TDavid> 24 * 3600 = 86400
<sharkysr> OK.   I thought it was 1 second after midnight from the 31st of december 1969, so it would have been the first second of 1970
<TDavid> well yes, technically you are correct hehe
<TDavid> :)
<TDavid> 12:01 am January 1, 1970
<sharkysr> so it would be 48*3600
<TDavid> yes, I stand corrected :)
<sharkysr> no matter, it was a long time ago.....hahaha
<TDavid> now what if we want to find out what timestamp was January 1, 1990 ?
<sharkysr> Without doing the math, I don't know???
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<TDavid> $jan11970 = (86400 * 365 * 20);
<TDavid> or would it be ... 
<TDavid> $jan11970 = (86400) * (365 * 20);
<sharkysr> 1990 you referring to??
<TDavid> $jan11990 = 86400 * (365 * 20);
<TDavid> yes
<sharkysr> either way you get the same number
<_Splitz_> TDavid, can't you give time() a date though?
<_Splitz_> You can in perl
<TDavid> well you give date() a time
<_Splitz_> nah, there's a reverse lookup function
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<_Splitz_> you give it a human readable time and it'll convert it to epoch
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<TDavid> same thing really, you just turn a timestamp into a date or a date into a timestamp ... whatever the case, it is the understanding of the calculation that is important
<TDavid> we could make our own function to do that
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<_Splitz_> TDavid, one thing with doing it yourself, leap years
<Psychic-A> allo
<TDavid> yup
<_Splitz_> yo Psychic, you ho
<Psychic-A> TD
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<Psychic-A> h0 h0 h0
<Psychic-A> !
<washiez> Ahaha
<TDavid> what's up psychic-a :)
<Psychic-A> nudda
<Psychic-A> u?
<_Splitz_> ok, pond invasion?
<_Splitz_> yuns get thrown out?
<washiez> Splitz, your 0wned!
<SusieS> td I posted my still not working code lol you can get to it later hahahaha 
<_Splitz_> washiez, you wish
<washiez> ;)
<Psychic-A> netpond castaways
<Psychic-A> what brings u here
<_Splitz_> me here?
<sharkysr> OK, TD what was the point we were trying to get to on the timestamp
<_Splitz_> Tired of the rectal rule of the pond
<_Splitz_> heh
<washiez> rectal?
<_Splitz_> ya, nice way of saying assholes =P
<TDavid> point is, there really is no DATE inside a computer
<TDavid> it is nothing more than a big timer that is always ticking
<washiez> Gee thanks splitz. ;-0
<_Splitz_> washiez, are you a ruler of the pond?
<TDavid> so when you need to figure out how much time has elapsed, you need to think of time and not dates
<_Splitz_> ok then
<SusieS> do new servers still have the same stamps on them I mean did they still start back in 1970?
<TDavid> yes
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<TDavid> it's in the chip
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<sharkysr> OK.  so is there a function that will give you the time elapsed based on dates, or would that have to be written
<_Splitz_> heh
<SusieS> ok thanks
<TimeWalker> brb
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<TDavid> yes you can use mktime
<TDavid> er mktime()
<TDavid> <? $currenthour = date("h"); print("50 hours from now: "); print(date("h:i A 1 F dS, Y" mktime($currenthour+50)));
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<TDavid> all those codes can cause confusion, but in the course material I've provided you with a list of the date codes
<TDavid> yes you can use mktime
<TDavid> er mktime()
<TDavid> <? $currenthour = date("h"); print("50 hours from now: "); print(date("h:i A 1 F dS, Y" mktime($currenthour+50)));
<TimeWalker> I know your sorta doing lessons
<sharkysr> OK, well I'm getting lost in this.  I understand the math behind the time, but where are we heading with this TD?
<TimeWalker> but I had a question about cookies and reading em :)
<TDavid> sharkysr, i just explained that, did I not make myself clear?
<TDavid> point is, there really is no DATE inside a computer
<TDavid> it is nothing more than a big timer that is always ticking
<TDavid> you need to remember that later
<sharkysr> I understand that.
<TDavid> so when you are asked to write a program that does something based on the amount of time that has passed you know how to do it, yes?
<SusieS> Parse error: parse error in /www/r-smedia.com/lesson1.php3 on line 6
<SusieS> SusieS
<SusieS> what does that mean?
<sharkysr> yea, basically.  That shouldn't be a problem TD.
<TDavid> it means your syntax is out of whack, will you cut and paste line 6 to this channel please?
<SusieS> print($myname Dj's at $myfavoritve_url on $my_show .$comments);
<TDavid> you need to enclose strings in double quotes that
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<TDavid> print("$myname Dj's at $myfavorite_url on $my_show. $comments");
<TDavid> you can only print a variable by itself without double or single quotes
<TDavid> print($myname); <-- no error
<TDavid> print($myname Dj's); <-- error
<TDavid> php thinks that you are trying to execute a function named Dj but the syntax is wrong
<SusieS> ok got it to work ehhehehehehe thanks much 
<TDavid> a bare word by itself implies you are using a function ... like print
<TDavid> like date
<SusieS> now if I can just get it to not show the underscores then that would look cool hehehe
<TDavid> so it expects an "argument" behind that :)
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<SusieS> I see ok
<TDavid> now let's get back to formatting a date from a timestamp
<sharkysr> yea
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<TDavid> print(date("h:i:s", $timestamp)); // returns current time
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<TDavid> <? $now = time(); print(date("h:i:s", $now)); // returns current time ?>
<sharkysr> That is a much simpler way to display the time then the JavaScript I have on my site pages...haha
<SusieS> ' '= variables and " " = arguements
<TDavid> they equal strings, susieS
<TDavid> for example
<SusieS> ok
<TDavid> print('1'); is the same as: $string = 1; print($string);
<SusieS> ok what if I want the time displayed in est?
<TDavid> great question, you need to get a time offset
<SusieS> I see ok thanks td I think it is getting clearer
<TDavid> first you need to know what time your SERVER is operating at
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<TDavid> because that is where the timezone will originate
<SusieS> and how do we find that out?
<SusieS> ok it is in cali
<TDavid> or .. it is better for universal programming to use GMT
<sharkysr> so that is PST, right?
<TDavid> yes that is PST
<TDavid> any idea how we might get a time offset?
<sharkysr> how do you determine GMT from wherever you are, or your server is??
<TDavid> use gmdate()
<SusieS> ok so gmt is 08:00
<SusieS> for cali
<sharkysr> great, that makes it even easier...
<SusieS> I use my clock lol
<SusieS> on the pc
<TDavid> hehe susieS :)
<TDavid> actually one way to do this is to use JavaScript, because javascript is client side, right?
<SusieS> well I go to settings for it and look up wehre i want to know
<TDavid> so you could compare the current GM date to the local date using JavaScript and get a time offset
<TDavid> might be +5 or -5 hours
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<TDavid> or some other number
<SusieS> ok 
<TDavid> and then you simply subtract that from the server time
<SusieS> hey sassy
<Sassy> hi SusieS *hugs*
<TDavid> subtracting a positive and a negative will still give you the correct offset, correct?
<Wolfes-woman> what thde heck happened to Wolfe ?
<TDavid> 5 - +3 = 8
<Wolfes-woman> TD .. hey there :-)
<TDavid> hi ww
<Wolfes-woman> how are you ??  I havent talked to you in forever
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<TDavid> good, im just finishing up a workshop here :)
<Wolfes-woman> and I missed it :-(
<TDavid> does anybody have any questions on time/dates?
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<Wolfe> yes ... Can you repeat that workshop ??? hehe
<TDavid> hehe, that's not a question, that's a request wolfe lol
<Wolfe> =-)
<Wolfes-woman> Wolfe you should have logged it
<Wolfes-woman> and Im sorry about the power again .. was the micro on or just plugged in ?
<sharkysr> TD
<Wolfe> on
<TDavid> yes, sharkysr?
<sharkysr> I've got a question on the 5 - +3 = 8 thing
<Wolfes-woman> well thats why ... shut the blower down if you are gonna use the micro ...
<sharkysr> how do you make that work?
<Wolfe> THe blower wasn't on !!!
<Wolfe> I told you what was on !!!
<sharkysr> 5 - -3 = 8
<Wolfes-woman> it wasnt ???
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<Wolfe> nothing we don't have on normally was on ...
<Wolfes-woman> damn .. I will send Don out today to check out the breakers .. maybe one is bad
<Wolfe> okay
<sharkysr> TD, you still there?
<Wolfe> I'm really getting tired of loosing my work cause the breaker decides to pop
<SusieS> wolfe i have the workshop logged if you need it
<sharkysr> UPS is the answer to that Wolfe
<Wolfes-woman> start saving things regularly
<TDavid> yes, im getting back to work though now
<TDavid> got a zillion things piling up ... we can continue this in script school
* SusieS was very glad to have ups lastnight for sure
<sharkysr> Did you see my questions, TD?
<Wolfe> I wanted UPS
<TimeWalker> td you see the priv from me?
<TDavid> yes, but I only have an hour for workshop allotted and phone is starting to ring through now
<Wolfe> hmmm...
<SusieS> Td thanks now that I have lesson one working I will tacle lesson 2
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<Wolfe> SusieS a log of the workshop would be great
<TDavid> please post to messageboard your questions and I will answer or come over to script school later :)
<SusieS> ok will sent to you dcc
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<Wolfe> thanx
<TDavid> thank you for coming everyone
<Wolfe> I have ot catch up on lesson 1 still hehe
<TDavid> cya folks
<Wolfes-woman> hey TD !!
<TDavid> hey what?
<Wolfes-woman> it was really nice seeing you ... :-)
<TDavid> nice seeing you too :))
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<TDavid> stop by script school once in awhile :))
Session Close: Tue Sep 12 13:20:25 2000