Re: [PHP] Redirecting in a PHP script
Larry Bradley wrote: I need to goto different PHP pages in my web site depending on what happens within some PHP code. For example, if the user is not logged in when he goes to a page, I want to send him to a LOGIN page. I've have everything working fine, using the following Javascript code: $location = 'login.php'; echo script language='javascript'\n; echo document.location.href = ' . $location . ';\n; echo /script\n; I also played around with using the header(location: ...) function. I understand that the header() function must be issued before any HMTL is output. But I'm not sure about the Javascript code. In every instance in my code, I use the Javascript before any HTML - this type of action normally occurs in PHP code called via a form POST. I presume that the Javascript code really does the same as the PHP stuff, and thus must obey the same rules, but I'm not sure. Comments? Larry Bradley Orleans (Ottawa), Ontario, CANADA You could just put the bit of code that does the redirect above the HTML, or use ob_start() at the beginning of your php file and ob_end_flush() at the end, if you need to do a redirect then call ob_end_clean() before the header() function. and as some one else mentioned with clever use of a switch-case and includes you can avoid header() redirects entirely. Clive -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Redirecting in a PHP script
At 11:28 PM -0500 3/14/07, Richard Lynch wrote: On Tue, March 13, 2007 11:54 pm, Chris Shiflett wrote: Tijnema wrote: Did you guys ever noted that little arrow down just right of the back button, where you can go back 2 steps at once, so you don't have to click very fast? I think we both remember browsing before that feature was invented. I remember the fire-storm when the IMG tag was introduced. Death of the Internet. Film at 11 Various news posts went like this: I mean, my God, man, you're going to include a FIFTEEN KILOBYTE file on your web page?!!! What, are you crazy???! That's going to melt-down the entire Internet! :-) :-) :-) Yeah, I remember similar comments about using a mouse -- hey, things change. tedd -- --- http://sperling.com http://ancientstones.com http://earthstones.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Redirecting in a PHP script
- Original Message - From: tedd [EMAIL PROTECTED] At 11:28 PM -0500 3/14/07, Richard Lynch wrote: On Tue, March 13, 2007 11:54 pm, Chris Shiflett wrote: Tijnema wrote: Did you guys ever noted that little arrow down just right of the back button, where you can go back 2 steps at once, so you don't have to click very fast? I think we both remember browsing before that feature was invented. I remember the fire-storm when the IMG tag was introduced. Death of the Internet. Film at 11 Various news posts went like this: I mean, my God, man, you're going to include a FIFTEEN KILOBYTE file on your web page?!!! What, are you crazy???! That's going to melt-down the entire Internet! :-) :-) :-) Yeah, I remember similar comments about using a mouse -- hey, things change. tedd -- And this nonsense of a glass-tty! how are you supposed to really make sense of a program staring at that thing, seeing just 24 lines at a time? It can't compare with browsing through fanfold paper in the confort of your desk, or even at home! Whenever, wherever an idea hits you, paper and pencil is just so handy. Satyam -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Redirecting in a PHP script
On 3/14/07, Chris Shiflett [EMAIL PROTECTED] wrote: Tijnema wrote: Did you guys ever noted that little arrow down just right of the back button, where you can go back 2 steps at once, so you don't have to click very fast? I think we both remember browsing before that feature was invented. Chris How long ago is that? Was it before i came to earth? ... LOL It was in Win95 right? I never worked on Win3.x so maybe it was there :) Tijnema -- Chris Shiflett http://shiflett.org/ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Redirecting in a PHP script
On 3/13/07 4:50 PM, Tijnema ! wrote: Did you guys ever noted that little arrow down just right of the back button, where you can go back 2 steps at once, so you don't have to click very fast?? Browsers have buttons in them? Next thing, you'll be telling me I can see images and color in my browser! What craziness! ;-) -- Ben Ramsey http://benramsey.com/ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Redirecting in a PHP script
On Tue, March 13, 2007 3:41 pm, Chris Shiflett wrote: Robert Cummings wrote: I've found clicking really fast can get you back :) I, too, have successfully used this technique. :-) +1 Sometimes back button followed at just the right time by top so I get the HTML, but no JS runs. -- Some people have a gift link here. Know what I want? I want you to buy a CD from some starving artist. http://cdbaby.com/browse/from/lynch Yeah, I get a buck. So? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Redirecting in a PHP script
On Tue, March 13, 2007 3:50 pm, Tijnema ! wrote: On 3/13/07, Chris Shiflett [EMAIL PROTECTED] wrote: Robert Cummings wrote: I've found clicking really fast can get you back :) I, too, have successfully used this technique. :-) Chris Did you guys ever noted that little arrow down just right of the back button, where you can go back 2 steps at once, so you don't have to click very fast?? Yes, but 2 pages back is not where I want to be. I want to be on the page with the stupid JS or META re-direct, without getting bounced forward. Quick-draw McGraw says back + stop == DWIM -- Some people have a gift link here. Know what I want? I want you to buy a CD from some starving artist. http://cdbaby.com/browse/from/lynch Yeah, I get a buck. So? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Redirecting in a PHP script
On Tue, March 13, 2007 11:54 pm, Chris Shiflett wrote: Tijnema wrote: Did you guys ever noted that little arrow down just right of the back button, where you can go back 2 steps at once, so you don't have to click very fast? I think we both remember browsing before that feature was invented. I remember the fire-storm when the IMG tag was introduced. Death of the Internet. Film at 11 Various news posts went like this: I mean, my God, man, you're going to include a FIFTEEN KILOBYTE file on your web page?!!! What, are you crazy???! That's going to melt-down the entire Internet! :-) :-) :-) And boy that blink tag was fun... For about 5 minutes. :-v -- Some people have a gift link here. Know what I want? I want you to buy a CD from some starving artist. http://cdbaby.com/browse/from/lynch Yeah, I get a buck. So? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Redirecting in a PHP script
On 3/12/07, Larry Bradley [EMAIL PROTECTED] wrote:
I need to goto different PHP pages in my web site depending on what
happens within some PHP code.
For example, if the user is not logged in when he goes to a page, I want to
send him to a LOGIN page.
I've have everything working fine, using the following Javascript code:
$location = 'login.php';
echo script language='javascript'\n;
echo document.location.href = ' . $location . ';\n;
echo /script\n;
I also played around with using the header(location: ...) function.
I understand that the header() function must be issued before any HMTL is
output.
But I'm not sure about the Javascript code. In every instance in my code, I
use the Javascript before any HTML - this type of action normally occurs in
PHP code called via a form POST.
I presume that the Javascript code really does the same as the PHP stuff,
and thus must obey the same rules, but I'm not sure.
Comments?
Larry Bradley
Orleans (Ottawa), Ontario, CANADA
Just to throw my two cents into this...
I set my scripts up so they run something like this:
class SomePage {
function process($controller) {
if (! logged in)
return $controller-foward('Login', 'Form');
[page code]
}
}
This way I don't have to issue header redirects to make a user see a
totally different part of the script. I just tell the controller to
foward the request to another controller action. You could use this
method on saving records where the post page can redisplay the form on
an error.
The only time I use header redirects is when I don't want the user to
accidentally resubmit the form when they click the back button or if I
need to change the url to remove a variable from it.
On any of my pages that accept POST data I issue a redirect to a page
that thanks the user. This way they can hit refresh all day and I
don't get extra posts or that nasty page has expired message in IE.
One thing you might also want to consider is the fact people can turn
off JavaScript. Spam bots also do not have JavaScript. Anything that
is important such as making sure a user is logged in should have a
server side check otherwise they will blaze right past your JS
redirect.
To do something like the controller above in procedural code it would
be easy enough:
---page.php---
if (! logged in) {
require 'templates/login_form.php';
} else {
echo 'user is logged in and okay!';
}
---
--
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Re: [PHP] Redirecting in a PHP script
If you do want to use the header function after html has been output, you can always look at using output buffering (ob_start()).
Re: [PHP] Redirecting in a PHP script
On Tue, 2007-03-13 at 21:50 +0100, Tijnema ! wrote: On 3/13/07, Chris Shiflett [EMAIL PROTECTED] wrote: Robert Cummings wrote: I've found clicking really fast can get you back :) I, too, have successfully used this technique. :-) Chris Did you guys ever noted that little arrow down just right of the back button, where you can go back 2 steps at once, so you don't have to click very fast?? Sure have... but where's the fun in it? ;) Cheers, Rob. -- .. | InterJinn Application Framework - http://www.interjinn.com | :: | An application and templating framework for PHP. Boasting | | a powerful, scalable system for accessing system services | | such as forms, properties, sessions, and caches. InterJinn | | also provides an extremely flexible architecture for | | creating re-usable components quickly and easily. | `' -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Redirecting in a PHP script
Tijnema wrote: Did you guys ever noted that little arrow down just right of the back button, where you can go back 2 steps at once, so you don't have to click very fast? I think we both remember browsing before that feature was invented. Chris -- Chris Shiflett http://shiflett.org/ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Redirecting in a PHP script
On 3/12/07, Larry Bradley [EMAIL PROTECTED] wrote: I need to goto different PHP pages in my web site depending on what happens within some PHP code. For example, if the user is not logged in when he goes to a page, I want to send him to a LOGIN page. I've have everything working fine, using the following Javascript code: $location = 'login.php'; echo script language='javascript'\n; echo document.location.href = ' . $location . ';\n; echo /script\n; I also played around with using the header(location: ...) function. I understand that the header() function must be issued before any HMTL is output. But I'm not sure about the Javascript code. In every instance in my code, I use the Javascript before any HTML - this type of action normally occurs in PHP code called via a form POST. I presume that the Javascript code really does the same as the PHP stuff, and thus must obey the same rules, but I'm not sure. Comments? Larry Bradley Orleans (Ottawa), Ontario, CANADA There's a difference in them, as the php header function defines the redirect in the header, meaning that all body is not even parsed. And it works also if javascript is disabled. I prefer the header function, but if you already have data parsed, the javascript could to the job, but even then it needs to be inside the head tags i believe, or else it won't get automatically executed. Tijnema
Re: [PHP] Redirecting in a PHP script
On Mon, 2007-03-12 at 22:43 +0100, Satyam wrote: The only way to actually go back in those is to open the dropdown list for the back button and skip over one item. I've found clicking really fast can get you back :) That does not happen when using the header() PHP function. That is my recommendation also despite the success of frantic clicking *grin* Cheers, Rob. -- .. | InterJinn Application Framework - http://www.interjinn.com | :: | An application and templating framework for PHP. Boasting | | a powerful, scalable system for accessing system services | | such as forms, properties, sessions, and caches. InterJinn | | also provides an extremely flexible architecture for | | creating re-usable components quickly and easily. | `' -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
