Re: [PHP] refreshing pages in the cache
Yes - that seems to be the trick! Thank you very much for your tip AND your patience. :) You've made an old programmer's day! -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] refreshing pages in the cache
Your welcome, I am glad that it works and is doing what your after. To: php-general@lists.php.net From: jim.gi...@albanyhandball.com Date: Thu, 28 Apr 2011 09:19:58 -0400 Subject: Re: [PHP] refreshing pages in the cache Yes - that seems to be the trick! Thank you very much for your tip AND your patience. :) You've made an old programmer's day! -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] refreshing pages in the cache
On Wed, Apr 27, 2011 at 4:42 PM, Jim Giner jim.gi...@albanyhandball.comwrote: Im trying to make my webpages display random photos on a border. Got it all working now but have a question about the IE cache. Seems that once the page has been displayed, no amount of refresh will make the page rebuild and thus show 'different' pics the second time around. Can php do something about a page in the cache? I know that the cache is there to speed up performance and all, but I thought this random image thing would work if they just hit F5 to see a new array of images. Can php detect a user-requested 'refresh'? Though you can't control everything, headers can help. https://secure.wikimedia.org/wikipedia/en/wiki/List_of_HTTP_header_fields%20https://secure.wikimedia.org/wikipedia/en/wiki/List_of_HTTP_header_fields http://us3.php.net/manual/en/function.header.php Cache-Control is a nice one. =) -- --Zootboy Sent from my PC.
Re: [PHP] refreshing pages in the cache
thanks for the input but your first link is invalid and the second I don't understand why you sent me. Perhaps you could explain? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] refreshing pages in the cache
On Wed, Apr 27, 2011 at 8:50 PM, Jim Giner jim.gi...@albanyhandball.comwrote: thanks for the input but your first link is invalid and the second I don't understand why you sent me. Perhaps you could explain? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php Sure. In order to tell the browser to not cache a page, you need to set the header Cache-Control: no-cache. This can be done by the PHP command header(Cache-Control: no-cache); -- --Zootboy Sent from my PC.
Re: [PHP] refreshing pages in the cache
ok - I'm lost. What do I do with this knowledge? - Original Message - From: Sean Greenslade zootboys...@gmail.com Sure. In order to tell the browser to not cache a page, you need to set the header Cache-Control: no-cache. This can be done by the PHP command header(Cache-Control: no-cache); -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] refreshing pages in the cache
You need to still put in the standard PHP tags as you would normally and it is just another line of code. e.g ?php header(Cache-Control: no-cache); ? To: php-general@lists.php.net From: jim.gi...@albanyhandball.com Date: Wed, 27 Apr 2011 21:33:16 -0400 Subject: Re: [PHP] refreshing pages in the cache ok - I'm lost. What do I do with this knowledge? - Original Message - From: Sean Greenslade zootboys...@gmail.com Sure. In order to tell the browser to not cache a page, you need to set the header Cache-Control: no-cache. This can be done by the PHP command header(Cache-Control: no-cache); -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] refreshing pages in the cache
So - it's not an html attribute - it's a PHP command that precedes ALL my html headers? Ross Hansen hansen.r...@live.com.au wroteYou need to still put in the standard PHP tags as you would normally and it is just another line of code. e.g ?php header(Cache-Control: no-cache); ? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] refreshing pages in the cache
I am not 100% with this so i might not have the full picture however, it is just a command that would have the server tell the client not to cache the page. from something i just read you would want to execute this from the server, as by the time it gets to the client it would be too late as it would have already been cached. Have a look at this page also http://php.net/manual/en/function.header.php There is a quick section on this, it doesn't explain much detail but it does give an idea. To: php-general@lists.php.net From: jim.gi...@albanyhandball.com Date: Wed, 27 Apr 2011 21:52:57 -0400 Subject: Re: [PHP] refreshing pages in the cache So - it's not an html attribute - it's a PHP command that precedes ALL my html headers? Ross Hansen hansen.r...@live.com.au wroteYou need to still put in the standard PHP tags as you would normally and it is just another line of code. e.g ?php header(Cache-Control: no-cache); ? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] refreshing pages in the cache
Must be doing something wrong. Besides not helping my pages to re-build, it actually ruins the presentation of a couple of my pages, even tho they are all using the exact same includes with only some dummy content in one div different than all the other pages. I added this line to my existing starter page code: ? echo 'header(Cache-Control: no-cache)';? the above lines were added just ahead of the following - which was the absolute first line of output generated by my built page - line 1 of my first included file: !DOCTYPE HTML PUBLIC -//W3C//DTD HTML 4.01 Transitional//EN -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] refreshing pages in the cache
You don't want to echo it as it isn't something that is going to HTML. it is native PHP. the correct command should be ? header(Cache-Control: no-cache);? See how this goes. To: php-general@lists.php.net From: jim.gi...@albanyhandball.com Date: Wed, 27 Apr 2011 22:12:23 -0400 Subject: Re: [PHP] refreshing pages in the cache Must be doing something wrong. Besides not helping my pages to re-build, it actually ruins the presentation of a couple of my pages, even tho they are all using the exact same includes with only some dummy content in one div different than all the other pages. I added this line to my existing starter page code: ? echo 'header(Cache-Control: no-cache)';? the above lines were added just ahead of the following - which was the absolute first line of output generated by my built page - line 1 of my first included file: !DOCTYPE HTML PUBLIC -//W3C//DTD HTML 4.01 Transitional//EN -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] refreshing an included php file
AndreaD mailto:[EMAIL PROTECTED] on Monday, March 21, 2005 2:27 PM said: I have a file, index.php and this has an included file, lets call it calculate.php. When I insert values in text boxes and hit submit the values are written as cookies. The question is how can I refresh calculate.php so it shows the new value. By submitting the form probably...? You haven't provided any code, or actual problems. If you wrote the code correctly within calculate.php you wouldn't be asking this question. Upon refresh/reload of index.php, calculate.php should be updating your cookie. Chris. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] refreshing an included php file
On Mon, March 21, 2005 2:27 pm, AndreaD said: I have a file, index.php and this has an included file, lets call it calculate.php. When I insert values in text boxes and hit submit the values are written as cookies. The question is how can I refresh calculate.php so it shows the new value. When you set a cookie, it is sent *TO* the browser, to be sent *back* in the *NEXT* HTTP request. The browser itself does not have access to the cookies, so you can't, say, use javaScript to do calculations with them. The Cookies you just *sent* at the top of your script have not been sent *back* yet -- But since you have the values at the top of the script, you can use those same values in some variables to provide whatever calculations you want. Hope that helps you sort things out... -- Like Music? http://l-i-e.com/artists.htm -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Refreshing page after form submission
Would something like this work
If($_POST['submit']){//add error checking for whatever critical fields
echo Thank you for filling out my form.\n;
} else {
//display form with a input type=submit name=submit value=Save
}
--
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Re: [PHP] Refreshing page after form submission
S.D.Price wrote: Hi, I have a form which when submitted adds a record to a DB. However if the user clicks back it resubmits the same record. When you send out the FORM the first time, create a random unique value: $token = md5(uniqid()); Store that token in your database in a table. Include that in an INPUT TYPE=HIDDEN with a random unique VALUE=?=$token? When you process the form, mark that $token in the database as Submitted If they attempt to re-process the same form (IE, the $token is already Submitted) then you can do something, or nothing, or whatever you think best. I have tried using cache control to no avail : Browsers and cache control have a turbulent history, and while they are really nifty for getting good browsers to refresh content, they are not real reliable. If you *need* more control over content caching, change your URLs, perhaps randomly, when you want content to not be cached. -- Like Music? http://l-i-e.com/artists.htm -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Refreshing page after form submission
Thanks this was the best solution I used this code as part of form
validation.
// query to check record has not already been added by comparing
submitted title with title of last record
$query_gnewsid_unique = SELECT MAX(newsid) AS newsid FROM
tblnews;
// execute query
$result_gnewsid_unique = mysql_query($query_gnewsid_unique);
$row_gnewsid_unique = mysql_fetch_array($result_gnewsid_unique);
$newsid_unique = $row_gnewsid_unique['newsid'];
// query to extract last title from tblnews
$query_gtitle_unique = SELECT title
FROM tblnews
WHERE newsid = $newsid_unique;
$result_gtitle_unique = mysql_query($query_gtitle_unique);
$row_gtitle_unique = mysql_fetch_array($result_gtitle_unique);
$title_unique = $row_gtitle_unique['title'];
if ($title == $title_unique) {
$message_unique = You have already entered this record.;
$unique = TRUE;
}
Steve
-Original Message-
From: Burhan Khalid [mailto:[EMAIL PROTECTED]
Sent: 17 December 2004 13:07
To: S.D.Price
Subject: Re: [PHP] Refreshing page after form submission
S.D.Price wrote:
Hi, I have a form which when submitted adds a record to a DB. However
if the user clicks back it resubmits the same record.
I have tried using cache control to no avail :
header (Expires: Mon, 26 Jul 1997 05:00:00 GMT);
header (Last-Modified: . gmdate(D, d M Y H:i:s). GMT); header
(Cache-control: no-store, no-cache, must revalidate);
header(Cache-control: post-check=0, pre-check=0, false); header
(Pragma: no-cache); session_cache_limiter(nocache);
I also tried testing for the presence of a submit button so if the
user enters data submits the form and clicks back the page will
refresh.
?php
if ($_POST['submit']) {
echo META HTTP-EQUIV='refresh' CONTENT='0; URL=$PHP_SELF';
} else {
}
?
You can try and check if the user's information already exists in the
database, then display an appropriate message.
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Re: [PHP] Refreshing in forms using post
What header are you using? If you use Location header, this should not happen. Matt Grimm wrote: Suppose I have a form. Upon submission, the metadata is posted to a processing script (a separate PHP file), which parses it and then sends the user back to a particular page using the header function. If said user clicks their browser's back button, the aforementioned processing script will re-parse that post data and create a duplicate record. How can I prevent this? Cache control? Thanks, -- Matt Grimm Web Developer The Health TV Channel, Inc. (a non - profit organization) 3820 Lake Otis Parkway Anchorage, AK 99508 907.770.6200 ext. 686 907.336.6205 (fax) E-mail: [EMAIL PROTECTED] Web: www.healthtvchannel.org -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Refreshing in forms using post
Hello Matt, Monday, December 1, 2003, 10:31:23 PM, you wrote: MG Suppose I have a form. Upon submission, the metadata is posted to a MG processing script (a separate PHP file), which parses it and then sends the MG user back to a particular page using the header function. If said user MG clicks their browser's back button, the aforementioned processing script MG will re-parse that post data and create a duplicate record. How can I MG prevent this? Cache control? There is no 100% reliable method of controlling the cache of any browser. Why not, in your processing script, set a flag or issue something to the users session to the effect of already submitted this form. Then if they do click back and submit it all again you can check for the existence of this value and give them a nice friendly error message (Thanks for your enthusiasm, but you've already done this!) :) -- Best regards, Richardmailto:[EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Refreshing After Submitting a From
Does anyone have any ideas on how I could do this? Is there any reason you can't throw a refresh command into a header before any data is sent? -Dan -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Refreshing After Submitting a From
[snip] I have a form on a popup that gets submitted to the PARENTWINDOW. If there was an error while processing the form, it will be displayed in the parentwindow. The popup never closes, but it needs to refresh, cuz it needs to get new data from MySQL. Does anyone have any ideas on how I could do this? [/snip] JavaScript -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Refreshing
[snip] I have a chat script. I want it to refresh the chat display area whenever there is a new message posted, but not every 10 seconds or so. How could I get the script to refresh only when there is a new entry into the database table? Also, this may not be PHP but...does anyone know how to stop the annoying click on Internet Explorer when something refreshes? [/snip] 1. Nope, not with PHP. Well, you could but it would require a script running in a loop in the background, checking for new data, then calling a header redirect of some sort. That is kludgy and would require the looping doohickey for each conversation within the chat. 2. You can disable sounds in a themes thingie, depends on which windoze version you own. HTH! Jay -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Refreshing
1. This way would probably end up sending out 500 little clicks every minute...so... Could any client side script do this like JavaScript? I doubt it could but just a question. With bubblegum in my shoe, Stephen Craton Senior Executive Web Developer Mophus.com, Inc. - Original Message - From: Jay Blanchard [EMAIL PROTECTED] To: Stephen [EMAIL PROTECTED]; PHP List [EMAIL PROTECTED] Sent: Monday, June 30, 2003 12:41 PM Subject: RE: [PHP] Refreshing [snip] I have a chat script. I want it to refresh the chat display area whenever there is a new message posted, but not every 10 seconds or so. How could I get the script to refresh only when there is a new entry into the database table? Also, this may not be PHP but...does anyone know how to stop the annoying click on Internet Explorer when something refreshes? [/snip] 1. Nope, not with PHP. Well, you could but it would require a script running in a loop in the background, checking for new data, then calling a header redirect of some sort. That is kludgy and would require the looping doohickey for each conversation within the chat. 2. You can disable sounds in a themes thingie, depends on which windoze version you own. HTH! Jay -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Refreshing
Try using Javascript to reload an image instead of an HTML file. Images don't click, and you can check whether new data is available by the size of the returned image (e.g.: 1 pixel, no new data, 2pixels, new data). You will need a small PHP script on the backend that generates the image based on whether the data is available or not. Cheers, Marco -- php|architect -- The Magazine for PHP Professionals Get your free copy today at http://www.phparch.com! On Mon, 2003-06-30 at 13:50, Stephen wrote: 1. This way would probably end up sending out 500 little clicks every minute...so... Could any client side script do this like JavaScript? I doubt it could but just a question. With bubblegum in my shoe, Stephen Craton Senior Executive Web Developer Mophus.com, Inc. - Original Message - From: Jay Blanchard [EMAIL PROTECTED] To: Stephen [EMAIL PROTECTED]; PHP List [EMAIL PROTECTED] Sent: Monday, June 30, 2003 12:41 PM Subject: RE: [PHP] Refreshing [snip] I have a chat script. I want it to refresh the chat display area whenever there is a new message posted, but not every 10 seconds or so. How could I get the script to refresh only when there is a new entry into the database table? Also, this may not be PHP but...does anyone know how to stop the annoying click on Internet Explorer when something refreshes? [/snip] 1. Nope, not with PHP. Well, you could but it would require a script running in a loop in the background, checking for new data, then calling a header redirect of some sort. That is kludgy and would require the looping doohickey for each conversation within the chat. 2. You can disable sounds in a themes thingie, depends on which windoze version you own. HTH! Jay -- Marco Tabini President Marco Tabini Associates, Inc. 28 Bombay Avenue Toronto, ON M3H 1B7 Canada Phone: (416) 630-6202 Fax: (416) 630-5057 Web: http://www.tabini.ca -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Refreshing
Thank you for this method. I just have a few questions. 1. How could javascript reload the image? I'm not 100% familiar with JavaScript really... 2. How could I use PHP to find the width of the image? I was reading up on image manipulation last night but only got as far as creating an image. With bubblegum in my shoe, Stephen Craton Senior Executive Web Developer Mophus.com, Inc. - Original Message - From: Marco Tabini [EMAIL PROTECTED] To: Stephen [EMAIL PROTECTED] Cc: Jay Blanchard [EMAIL PROTECTED]; PHP List [EMAIL PROTECTED] Sent: Monday, June 30, 2003 12:52 PM Subject: Re: [PHP] Refreshing Try using Javascript to reload an image instead of an HTML file. Images don't click, and you can check whether new data is available by the size of the returned image (e.g.: 1 pixel, no new data, 2pixels, new data). You will need a small PHP script on the backend that generates the image based on whether the data is available or not. Cheers, Marco -- php|architect -- The Magazine for PHP Professionals Get your free copy today at http://www.phparch.com! On Mon, 2003-06-30 at 13:50, Stephen wrote: 1. This way would probably end up sending out 500 little clicks every minute...so... Could any client side script do this like JavaScript? I doubt it could but just a question. With bubblegum in my shoe, Stephen Craton Senior Executive Web Developer Mophus.com, Inc. - Original Message - From: Jay Blanchard [EMAIL PROTECTED] To: Stephen [EMAIL PROTECTED]; PHP List [EMAIL PROTECTED] Sent: Monday, June 30, 2003 12:41 PM Subject: RE: [PHP] Refreshing [snip] I have a chat script. I want it to refresh the chat display area whenever there is a new message posted, but not every 10 seconds or so. How could I get the script to refresh only when there is a new entry into the database table? Also, this may not be PHP but...does anyone know how to stop the annoying click on Internet Explorer when something refreshes? [/snip] 1. Nope, not with PHP. Well, you could but it would require a script running in a loop in the background, checking for new data, then calling a header redirect of some sort. That is kludgy and would require the looping doohickey for each conversation within the chat. 2. You can disable sounds in a themes thingie, depends on which windoze version you own. HTH! Jay -- Marco Tabini President Marco Tabini Associates, Inc. 28 Bombay Avenue Toronto, ON M3H 1B7 Canada Phone: (416) 630-6202 Fax: (416) 630-5057 Web: http://www.tabini.ca -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Refreshing
On Mon, 2003-06-30 at 13:57, Stephen wrote: Thank you for this method. I just have a few questions. 1. How could javascript reload the image? I'm not 100% familiar with JavaScript really... Set a timeout to x seconds (where x is the time you want to wait between checks--say one or two seconds). When the timeout occurs cause the image to reload by changing its src attribute (even to the same URL, of course). 2. How could I use PHP to find the width of the image? I was reading up on image manipulation last night but only got as far as creating an image. You don't need PHP to check the width of the image. PHP *generates* the image of a given width based on whether new data is available or not. On the frontend, you can set the onload event of the image to fire a function of your choosing when the image is reloaded, where you check its dimensions and act accordingly. Once you've done that, you reset your timer, and the cycle starts over. Cheers, Marco -- php|architect -- The Magazine for PHP Professionals Get your free copy today at http://www.phparch.com! With bubblegum in my shoe, Stephen Craton Senior Executive Web Developer Mophus.com, Inc. - Original Message - From: Marco Tabini [EMAIL PROTECTED] To: Stephen [EMAIL PROTECTED] Cc: Jay Blanchard [EMAIL PROTECTED]; PHP List [EMAIL PROTECTED] Sent: Monday, June 30, 2003 12:52 PM Subject: Re: [PHP] Refreshing Try using Javascript to reload an image instead of an HTML file. Images don't click, and you can check whether new data is available by the size of the returned image (e.g.: 1 pixel, no new data, 2pixels, new data). You will need a small PHP script on the backend that generates the image based on whether the data is available or not. Cheers, Marco -- php|architect -- The Magazine for PHP Professionals Get your free copy today at http://www.phparch.com! On Mon, 2003-06-30 at 13:50, Stephen wrote: 1. This way would probably end up sending out 500 little clicks every minute...so... Could any client side script do this like JavaScript? I doubt it could but just a question. With bubblegum in my shoe, Stephen Craton Senior Executive Web Developer Mophus.com, Inc. - Original Message - From: Jay Blanchard [EMAIL PROTECTED] To: Stephen [EMAIL PROTECTED]; PHP List [EMAIL PROTECTED] Sent: Monday, June 30, 2003 12:41 PM Subject: RE: [PHP] Refreshing [snip] I have a chat script. I want it to refresh the chat display area whenever there is a new message posted, but not every 10 seconds or so. How could I get the script to refresh only when there is a new entry into the database table? Also, this may not be PHP but...does anyone know how to stop the annoying click on Internet Explorer when something refreshes? [/snip] 1. Nope, not with PHP. Well, you could but it would require a script running in a loop in the background, checking for new data, then calling a header redirect of some sort. That is kludgy and would require the looping doohickey for each conversation within the chat. 2. You can disable sounds in a themes thingie, depends on which windoze version you own. HTH! Jay -- Marco Tabini President Marco Tabini Associates, Inc. 28 Bombay Avenue Toronto, ON M3H 1B7 Canada Phone: (416) 630-6202 Fax: (416) 630-5057 Web: http://www.tabini.ca -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Refreshing
[snip] I have a chat script. I want it to refresh the chat display area whenever there is a new message posted, but not every 10 seconds or so. How could I get the script to refresh only when there is a new entry into the database table? [/snip] I have implemented something along these lines for an online chess game (so the board would only refresh when the other player moves). It did require a loop, as suggested. I used a hidden IFRAME to check the data. Basically, I would refresh the page referred to by the IFRAME every 10 seconds or so, and this page contained JavaScript that invoked a function on the containing page. The JavaScript function on the containing page would then refresh the page when the parameter passed to it indicated that the other player had moved. I did implement the site using PHP, but this really isn't a PHP specific approach. I imagine you would do something very similar for chat (in fact, I had been considering implementing it for the online chess site so that the users could send messages to each other during the course of the game). And there is a performance issue if you are going to support a lot of users at one time; however, at least it is not as bad as refreshing the entire page every 10 seconds (this would be particularly disastrous for my chess board, which contained many images). There are a number of references that talk about this trick if you search on iframe rpc javascript in google: http://www.google.com/search?hl=enie=UTF-8oe=UTF-8q=iframe+rpc+javascript You will still get the clicking, tho. But users' can disable it if it annoys them -- sometimes it is nice to know that something is going on. Hope this helps. Jeremy -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Refreshing
The image should take care of the click, and also reduce the amount of information transmitted somewhat (although not necessarily, depending on what you send to your iframe). Cheers, Marco On Mon, 2003-06-30 at 14:09, Jeremy Thibeaux wrote: [snip] I have a chat script. I want it to refresh the chat display area whenever there is a new message posted, but not every 10 seconds or so. How could I get the script to refresh only when there is a new entry into the database table? [/snip] I have implemented something along these lines for an online chess game (so the board would only refresh when the other player moves). It did require a loop, as suggested. I used a hidden IFRAME to check the data. Basically, I would refresh the page referred to by the IFRAME every 10 seconds or so, and this page contained JavaScript that invoked a function on the containing page. The JavaScript function on the containing page would then refresh the page when the parameter passed to it indicated that the other player had moved. I did implement the site using PHP, but this really isn't a PHP specific approach. I imagine you would do something very similar for chat (in fact, I had been considering implementing it for the online chess site so that the users could send messages to each other during the course of the game). And there is a performance issue if you are going to support a lot of users at one time; however, at least it is not as bad as refreshing the entire page every 10 seconds (this would be particularly disastrous for my chess board, which contained many images). There are a number of references that talk about this trick if you search on iframe rpc javascript in google: http://www.google.com/search?hl=enie=UTF-8oe=UTF-8q=iframe+rpc+javascript You will still get the clicking, tho. But users' can disable it if it annoys them -- sometimes it is nice to know that something is going on. Hope this helps. Jeremy -- Marco Tabini President Marco Tabini Associates, Inc. 28 Bombay Avenue Toronto, ON M3H 1B7 Canada Phone: (416) 630-6202 Fax: (416) 630-5057 Web: http://www.tabini.ca -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Refreshing
The only problem I have with the image idea is that it is not particularly generic and a bit unusual (i.e. kindof a hack). The IFRAME would need only contain a simple JavaScript function call, so it would be pretty small (the data would probably be less than the HTTP header information), and this would basically represent the framework for implementing RPCs via JavaScript. Once you go down this path, you don't have to worry about figuring out what image size means what or how to generate these images, you just pass a meaningful parameter to your RPC response handler. But, I admit, I can get religious about these kind of things. In the end, sometimes practical realities justify hacks. And, really, it is all a matter of degrees (I am not sure IFRAMES were designed for what I am proposing you use them for either). Jeremy --- Marco Tabini [EMAIL PROTECTED] wrote: The image should take care of the click, and also reduce the amount of information transmitted somewhat (although not necessarily, depending on what you send to your iframe). Cheers, Marco -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Refreshing
On Tuesday 01 July 2003 12:30 am, Tom Rogers wrote: Hi, Tuesday, July 1, 2003, 3:41:56 AM, you wrote: JB Also, this may not be PHP but...does anyone know how to stop the JB annoying click on Internet Explorer when something refreshes? JB [/snip] control panel - sounds - set select to 'none' I found the answer to this by doing a google search with annoying clicking sound in Internet Explorer. I laughed when I actually found the answer on a page that described the sound as annoying. In an effort to keep this list on topic, I'd like to point out that you were correct when you said that this may not be PHP. :) James -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Refreshing
When I was asking this question, I wanted to do it on the server so the user didn't have to do anything. :-P With bubblegum in my shoe, Stephen Craton Senior Executive Web Developer Mophus.com, Inc. - Original Message - From: James Hicks [EMAIL PROTECTED] To: Tom Rogers [EMAIL PROTECTED]; Jay Blanchard [EMAIL PROTECTED] Cc: Stephen [EMAIL PROTECTED]; PHP List [EMAIL PROTECTED] Sent: Monday, June 30, 2003 11:39 PM Subject: Re: [PHP] Refreshing On Tuesday 01 July 2003 12:30 am, Tom Rogers wrote: Hi, Tuesday, July 1, 2003, 3:41:56 AM, you wrote: JB Also, this may not be PHP but...does anyone know how to stop the JB annoying click on Internet Explorer when something refreshes? JB [/snip] control panel - sounds - set select to 'none' I found the answer to this by doing a google search with annoying clicking sound in Internet Explorer. I laughed when I actually found the answer on a page that described the sound as annoying. In an effort to keep this list on topic, I'd like to point out that you were correct when you said that this may not be PHP. :) James -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Refreshing session variables
I think you're missing some fundamental concepts of sessions here. You must
think of the session as a file that you're going to include into the script
(becuase.. that's litteraly what it is). But instead of using include()
you're going to use session_start();
?
session_start();
if (!session_is_registered(myvar))
{
$myvar = 'peek a boo';
session_register(myvar);
}
else
{
echo $myvar;
session_unregister(myvar);
}
echo pa href=\$PHP_SELF\(refresh)/a;
?
When you activate this script for the first time three things happen..
1) the session file is created on the server
2) a cookie with the Session ID is stored on your computer
3) $myvar = 'peek a boo'; is added to the session file
When you click refresh to reactivate the script, PHP will match the session
id stored in the cookie to the file stored on the server, and include the
variables into the actively running script. $myvar is now available and the
contents are printed to the screen then unregistered (removed) from the
session file. The third time around it's going to stop in the if() portion
and reregister the variable. Adding and removing lines from a file and
including them into your script.. it's no more complicated than that.
Hopefully now you'll be able to fix your problem and learn to use sessions
reliably and effectively. :)
-Kevin
- Original Message -
From: N. Pari Purna Chand [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Thursday, July 18, 2002 3:36 PM
Subject: [PHP] Refreshing session variables
Hi guys,
I got a problem with refreshing session variables.
When the following code is run , for the first time
both $z and $secretstring are showing same values.
But when page is refreshed, the $secretstring variable
is still having the old value no matter how many times
I click refresh.
Am I missing some thing ?
?
$x = mt_rand (1000,1);
$y = mt_rand (1000,1);
$text = $x.$y;
$secretstring =$x.$y;
session_start();
if(session_is_registered(secretstring)){
session_unregister(secretstring);
}
session_register(secretstring);
echo BR.$text;
echo BR.$secretstring;
?
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Re: [PHP] refreshing PHP on onClick
Leotta, Natalie (NCI/IMS) wrote: This might be a little bit JS and a little bit PHP. I'm wondering if there's an easy way to refresh a PHP page on an onClick and change one parameter (say someone wants to redraw the graph, but with the points). I don't want to pay attention to any of the other parameters that could have changed on the screen (we've got a bunch of selects). We had come up with a really complicated way which involved changing the parameters to the most recent line drawn, deleting the most recent line, and then submitting with those parameters and the showPoints value changed, but that sounds pretty complicated. If anyone could come up with a quicker way that didn't involve the whole submitting thing, that would be easier. My page has all of the vars that are necessary in hidden vars, and has HTML, PHP, and a handful of JS. You wouldn't happen to have a demo would you? A visualization would help me a lot. Cheers, Rob. -- .-. | Robert Cummings | :-`. | Webdeployer - Chief PHP and Java Programmer | :--: | Mail : mailto:[EMAIL PROTECTED] | | Phone : (613) 731-4046 x.109 | :--: | Website : http://www.webmotion.com | | Fax : (613) 260-9545 | `--' -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] refreshing PHP on onClick
I'm not certain I understand your situation. If you're trying to keep state between each new input then I would recommend PHP sessions to store your variables. Could you elaborate more what you're trying to do? -Kevin - Original Message - From: Leotta, Natalie (NCI/IMS) [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Thursday, May 16, 2002 1:48 PM Subject: [PHP] refreshing PHP on onClick This might be a little bit JS and a little bit PHP. I'm wondering if there's an easy way to refresh a PHP page on an onClick and change one parameter (say someone wants to redraw the graph, but with the points). I don't want to pay attention to any of the other parameters that could have changed on the screen (we've got a bunch of selects). We had come up with a really complicated way which involved changing the parameters to the most recent line drawn, deleting the most recent line, and then submitting with those parameters and the showPoints value changed, but that sounds pretty complicated. If anyone could come up with a quicker way that didn't involve the whole submitting thing, that would be easier. My page has all of the vars that are necessary in hidden vars, and has HTML, PHP, and a handful of JS. Thanks! -Natalie Natalie S. Leotta Information Management Services, Inc. (301) 680-9770 [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] refreshing PHP on onClick
It's all in a password protected site because the data's all confidential at this point in time, but I can give you a mental picture. There are a bunch of dropdowns - State, Cancer, Sex, Race, Age. We're drawing a graph of best fit lines - up to 5 allowed on the graph, then we start over replacing them. We don't draw the actual data points unless the user clicks on a checkbox. They want that checkbox to be instant gratification, without making the user refresh. I just want a way to make it do the refresh (and let me change that one variable, so it draws the points or doesn't draw the points), but not a full submit because that would add another line to the graph. I'm sorry I can't send you the URL at this stage of the game. it should be up and running this summer though :-) Thanks for any help you can give me!! -Natalie -Original Message- From: Robert Cummings [mailto:[EMAIL PROTECTED]] Sent: Thursday, May 16, 2002 3:56 PM To: Leotta, Natalie (NCI/IMS) Cc: [EMAIL PROTECTED] Subject: Re: [PHP] refreshing PHP on onClick Leotta, Natalie (NCI/IMS) wrote: This might be a little bit JS and a little bit PHP. I'm wondering if there's an easy way to refresh a PHP page on an onClick and change one parameter (say someone wants to redraw the graph, but with the points). I don't want to pay attention to any of the other parameters that could have changed on the screen (we've got a bunch of selects). We had come up with a really complicated way which involved changing the parameters to the most recent line drawn, deleting the most recent line, and then submitting with those parameters and the showPoints value changed, but that sounds pretty complicated. If anyone could come up with a quicker way that didn't involve the whole submitting thing, that would be easier. My page has all of the vars that are necessary in hidden vars, and has HTML, PHP, and a handful of JS. You wouldn't happen to have a demo would you? A visualization would help me a lot. Cheers, Rob. -- .-. | Robert Cummings | :-`. | Webdeployer - Chief PHP and Java Programmer | :--: | Mail : mailto:[EMAIL PROTECTED] | | Phone : (613) 731-4046 x.109 | :--: | Website : http://www.webmotion.com | | Fax : (613) 260-9545 | `--' -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] refreshing PHP on onClick
Leotta, Natalie (NCI/IMS) wrote: It's all in a password protected site because the data's all confidential at this point in time, but I can give you a mental picture. There are a bunch of dropdowns - State, Cancer, Sex, Race, Age. We're drawing a graph of best fit lines - up to 5 allowed on the graph, then we start over replacing them. We don't draw the actual data points unless the user clicks on a checkbox. They want that checkbox to be instant gratification, without making the user refresh. I just want a way to make it do the refresh (and let me change that one variable, so it draws the points or doesn't draw the points), but not a full submit because that would add another line to the graph. Since you're already using javascript... you could try generating 2 images at the same time, one with the data points drawn, the other without, then using the same technology as for javascript rollovers, you could replace the image when the onClick event is caught. Instant gratification, and no messy varable replacements. I'm sorry I can't send you the URL at this stage of the game. it should be up and running this summer though :-) No problem, completely understandable :) Cheers, Rob. -- .-. | Robert Cummings | :-`. | Webdeployer - Chief PHP and Java Programmer | :--: | Mail : mailto:[EMAIL PROTECTED] | | Phone : (613) 731-4046 x.109 | :--: | Website : http://www.webmotion.com | | Fax : (613) 260-9545 | `--' -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] refreshing PHP on onClick
This sounds like it might work. Thanks for your help!! I knew there had to be a better way than what my coworkers came up with :-) -Natalie -Original Message- From: Robert Cummings [mailto:[EMAIL PROTECTED]] Sent: Thursday, May 16, 2002 4:09 PM To: Leotta, Natalie (NCI/IMS) Cc: [EMAIL PROTECTED] Subject: Re: [PHP] refreshing PHP on onClick Leotta, Natalie (NCI/IMS) wrote: It's all in a password protected site because the data's all confidential at this point in time, but I can give you a mental picture. There are a bunch of dropdowns - State, Cancer, Sex, Race, Age. We're drawing a graph of best fit lines - up to 5 allowed on the graph, then we start over replacing them. We don't draw the actual data points unless the user clicks on a checkbox. They want that checkbox to be instant gratification, without making the user refresh. I just want a way to make it do the refresh (and let me change that one variable, so it draws the points or doesn't draw the points), but not a full submit because that would add another line to the graph. Since you're already using javascript... you could try generating 2 images at the same time, one with the data points drawn, the other without, then using the same technology as for javascript rollovers, you could replace the image when the onClick event is caught. Instant gratification, and no messy varable replacements. I'm sorry I can't send you the URL at this stage of the game. it should be up and running this summer though :-) No problem, completely understandable :) Cheers, Rob. -- .-. | Robert Cummings | :-`. | Webdeployer - Chief PHP and Java Programmer | :--: | Mail : mailto:[EMAIL PROTECTED] | | Phone : (613) 731-4046 x.109 | :--: | Website : http://www.webmotion.com | | Fax : (613) 260-9545 | `--' -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Refreshing a page.
did you try: meta http-equiv=refresh content=0; URL=http://my.site.com//thispage.html; -Original Message- From: Morten Nielsen [mailto:[EMAIL PROTECTED]] Sent: Tuesday, February 12, 2002 3:10 PM To: [EMAIL PROTECTED] Subject: [PHP] Refreshing a page. Hi, I got a page, which uses frames. When a user logges in I would like to refresh a frame, but I don't know how to do that. Can anybody help me? Thanks, Morten -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Refreshing form with submittd data
On Thu, 6 Sep 2001 13:46:59 +0100, you wrote:
I have 3 radio buttons, and I want the one selected by the user to show as
selected when the page reloads. The form uses POST and points to itself.
How can I make this better? With a text field I can just do input
type=\text\ name=\foo\ value=\$bar\ but I can't figure out how to do
that sort of thing with radio buttons..
?
function sel($what) {
global $thumbs;
return($thumbs==$what?'checked':'');
}
?
form method=post action=?=$PHP_SELF?
pinput type=radio value=fas name=thumbs ?=sel('fas')?
Faster/p
pinput type=radio value=nor name=thumbs ?=sel('nor')?
Normal/p
pinput type=radio value=lar name=thumbs ?=sel('lar')?
Larger/p
pinput type=submit name=go value=Change/p
/form
djo
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RE: [PHP] Refreshing form with submittd data
Thank you thank you thank you. Sheer genius :-)
-Original Message-
From: David Otton [mailto:[EMAIL PROTECTED]]
Sent: 06 September 2001 22:18
To: Seb Frost
Cc: [EMAIL PROTECTED]
Subject: Re: [PHP] Refreshing form with submittd data
On Thu, 6 Sep 2001 13:46:59 +0100, you wrote:
I have 3 radio buttons, and I want the one selected by the user to show as
selected when the page reloads. The form uses POST and points to itself.
How can I make this better? With a text field I can just do input
type=\text\ name=\foo\ value=\$bar\ but I can't figure out how to do
that sort of thing with radio buttons..
?
function sel($what) {
global $thumbs;
return($thumbs==$what?'checked':'');
}
?
form method=post action=?=$PHP_SELF?
pinput type=radio value=fas name=thumbs ?=sel('fas')?
Faster/p
pinput type=radio value=nor name=thumbs ?=sel('nor')?
Normal/p
pinput type=radio value=lar name=thumbs ?=sel('lar')?
Larger/p
pinput type=submit name=go value=Change/p
/form
djo
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RE: [PHP] Refreshing php.ini without restart...
apache graceful command will restart the server altought it will wait until all web server sessions are finished to restart Valter Santos WEB/WAP Consultant -Original Message- From: Gerard Samuel [mailto:[EMAIL PROTECTED]] Sent: Friday, August 31, 2001 8:48 AM To: Raphael Pirker Cc: PHP Subject: Re: [PHP] Refreshing php.ini without restart... I can only speak for apache... == apachectl graceful Raphael Pirker wrote: Hi, i just moved my PHP project from my local PC to the online webserver and I will need to do a few adjustments to the server. since the server is used by all the employees in the company, there is no chance I can reboot it without prior notice... my question: is there any way I can refresh the changes I make in php.ini without doing a reboot? TIA, Raphael -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
RE: [PHP] Refreshing php.ini without restart...
you really do not to have to rebbot your server... Just restart apache with the graceful action... apache graceful Valter Santos WEB/WAP Consultant -Original Message- From: B. van Ouwerkerk [mailto:[EMAIL PROTECTED]] Sent: Friday, August 31, 2001 7:08 AM To: [EMAIL PROTECTED] Subject: Re: [PHP] Refreshing php.ini without restart... i just moved my PHP project from my local PC to the online webserver and I will need to do a few adjustments to the server. since the server is used by all the employees in the company, there is no chance I can reboot it without prior notice... my question: is there any way I can refresh the changes I make in php.ini without doing a reboot? I assume you're running PHP on a Linux box.. You should be able to restart apache.. even on NT you could stop and restart the service. Bye, B. /\ \ / ASCII Ribbon CampaignX Against HTML Mail and News / \ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
Re: [PHP] Refreshing php.ini without restart...
I can only speak for apache... == apachectl graceful Raphael Pirker wrote: Hi, i just moved my PHP project from my local PC to the online webserver and I will need to do a few adjustments to the server. since the server is used by all the employees in the company, there is no chance I can reboot it without prior notice... my question: is there any way I can refresh the changes I make in php.ini without doing a reboot? TIA, Raphael -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
Re: [PHP] Refreshing php.ini without restart...
Just restart the web server -- IIS or Apache Miles At 02:06 PM 8/31/01 +0800, Raphael Pirker wrote: Hi, i just moved my PHP project from my local PC to the online webserver and I will need to do a few adjustments to the server. since the server is used by all the employees in the company, there is no chance I can reboot it without prior notice... my question: is there any way I can refresh the changes I make in php.ini without doing a reboot? TIA, Raphael -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
Re: [PHP] Refreshing php.ini without restart...
i just moved my PHP project from my local PC to the online webserver and I will need to do a few adjustments to the server. since the server is used by all the employees in the company, there is no chance I can reboot it without prior notice... my question: is there any way I can refresh the changes I make in php.ini without doing a reboot? I assume you're running PHP on a Linux box.. You should be able to restart apache.. even on NT you could stop and restart the service. Bye, B. /\ \ / ASCII Ribbon CampaignX Against HTML Mail and News / \ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
Re: [PHP] Refreshing multiple frames?
You are going to need Javascript to do this. --zak - Original Message - From: Brandon Orther [EMAIL PROTECTED] To: PHP User Group [EMAIL PROTECTED] Sent: Monday, May 07, 2001 5:19 PM Subject: [PHP] Refreshing multiple frames? Hello, I am using php with frames for a menu bar. In one frame I have a menu. When the link is clicked on the menu I would like two frames to be updated. Is there a way to do this? Brandon -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
Re: [PHP] Refreshing multiple frames?
Link to another frameset page if you choose not to use javascript. But IMO there's no such thing as a proper use of frames. Frames should never be used for anything. Data Driven Design P.O. Box 1084 Holly Hill, Florida 32125-1084 http://www.datadrivendesign.com http://www.rossidesigns.net - Original Message - From: Brandon Orther [EMAIL PROTECTED] To: PHP User Group [EMAIL PROTECTED] Sent: Monday, May 07, 2001 7:19 PM Subject: [PHP] Refreshing multiple frames? Hello, I am using php with frames for a menu bar. In one frame I have a menu. When the link is clicked on the menu I would like two frames to be updated. Is there a way to do this? Brandon -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
Re: [PHP] Refreshing multiple frames?
Brandon Orther wrote: I am using php with frames for a menu bar. In one frame I have a menu. When the link is clicked on the menu I would like two frames to be updated. Is there a way to do this? As others have said, this is a JavaScript task not a PHP task. I am pretty sure there is an example at www.htmlgoodies.com. Cheers, Luke Welling -- PHP and MySQL Web Development by Luke Welling and Laura Thomson http://www.amazon.com/exec/obidos/ASIN/0672317842/tangledwebdesign -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
