basically the page receives varaibles via the url http://sitename.com?c1=xxx&c2=yyy.
I want to redirect to one link if c1 is less than 40 and otherwise go to a main link.
How do I program something like this?
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Just make sure that if you use PHP for this, you buffer your output (see: php.net/manual/en/book.outcontrol.php), because if ANY output is sent before your redirect instructions, the redirection won't work - the headers will have already been sent.user312650– user3126502011-09-02 09:12:47 +00:00Commented Sep 2, 2011 at 9:12
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5 Answers
using php you use
Header("Location: theurltoredirectto.com");
the javascript solution would be
window.location = "http://www.theurltoredirectto.com/"
Comments
In PHP:
if ($_GET['c1'] < 40) {
Header("Location: http://sitename.com/onelink");
} else {
Header("Location: http://sitename.com");
}
Comments
In PHP, it’s essentially:
<?php
$c1 = int($_GET['c1']);
if ($c1 < 40)
header('Location: http://new-location');
?>
After executing this code, just exit the script.
1 Comment
Konrad Rudolph
@Breezer Typo. Thanks for noticing.
In javascript you can use top.location.href='http://your.url.here' or window.location.href=...
Comments
In PHP, you'll want to use this code at the top of the script, before anything that outputs data to the page (such as echo, print, etc), as headers must be sent before any other data:
<?php
if (is_numeric($_GET["c1"]) and $_GET["c1"] < 40) { //Checks if the c1 GET command is a number that is less than 40
header("Location: /path/to/page2.php"); //Send a header to the browser that will tell it to go to another page
die(); //Prevent the script from running any further
}
You can set the /path/to/page2.php bit to anything that you would usually use for an <a> tag.
I don't recommend doing redirects in JavaScript or HTML, because if someone clicks Back in their browser, they'll be taken back to the page and be re-redirected to the next page.
Ad@m
1 Comment
kirb
@Breezer Sorry, my bad, I've fixed it now.