PHP Obtain the URL as a variable

Question

I have noticed that many websites use urls that end in

website.com/index.php?var="value"&var2="value2"

and I was wondering how I could make it so that instead of having that be the end of the URL have this instead:

website.com/value/value2

and then have it so that instead of searching for "/value/value2" inside of the servers root folder it would instead just open index.php and then inside the PHP coding have a function that would get what the URL is. Either as a string "/value/value2" or an array "value" "value2" it doesn't matter but just some way of getting those variables. This would be so that the URL could be cleaned up and easy to tell where you were in the website.

Also if there is a way of doing this would it be possible for style.php that is in the same folder as index.php (but has a PHP header setting it to output CSS) that would be called in the head of index.php using <link rel="stylesheet" type="text/css" url="style.php" /> or whatever the syntax for that is, to be able to obtain that same variable so that the css styling could be changed according to the URL.

and mod_rewrite (assuming apache), then php's $_SERVER['REQUEST_URI'] or similar from: us2.php.net/manual/en/reserved.variables.server.php — Chris Trahey
– Chris Trahey, Commented Aug 31, 2012 at 5:55

Vinay · Accepted Answer · 2012-08-31 05:54:11Z

You can use rewriting of urls in .htaccess file

Check this.

RewriteEngine on
RewriteRule ^([^/]+)/([^/]+)/([^/]+) /?var=$1&var2=$2 [L]

There are three parts to this:

RewriteRule specifies that this is a rule for rewriting (as opposed to a condition or some other directive). The command is to rewrite part 2 into part 3.
This part is a regex, and the rule will be run only if the URL matches this regex. In this case, it says - look for the beginning of the string, then a bunch of non-slash characters, then a slash, then another bunch of non-slash characters. then again bunch of non-slash characters, then a slash, then another bunch of non-slash characters. The parentheses mean the parts within the parentheses will be stored for future reference.
Finally, this part says to rewrite the given URL in this format. $1 and $2 refer to the parts that were captured and stored.

Refer Beginner's Guide to mod_rewrite. Also tutorial for same.

ravi404 · Accepted Answer · 2012-08-31 05:53:32Z

1

You need to re write the URL.. if u are using apache you would have to add changes in the .htaccess file. Check this and this manual.

answered Aug 31, 2012 at 5:53

ravi404

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Comments

Nameless · Accepted Answer · 2012-08-31 05:55:34Z

0

If using apache, enable mod_rewrite and use .htaccess

RewriteEngine on

RewriteCond %{SCRIPT_FILENAME} !-f
RewriteCond %{SCRIPT_FILENAME} !-d
RewriteRule ^(.*)$ /index.php [L]

If using nginx, use nginx_rewrite_module http://nginx.org/ru/docs/http/ngx_http_rewrite_module.html

And inside your index.php parse $_SERVER['REQUEST_URI'] variable, it will contain requested url.

answered Aug 31, 2012 at 5:55

Nameless

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Mic1780 · Accepted Answer · 2012-08-31 06:39:14Z

0

This can be achieved easily. Everything after the question mark are called $_GET variables. So you can call $_GET['var'] or $_GET['var2'] to get their values.

For example. I have the URL: http://www.example.com?username=username&password=password

Now i can take that url and make it so:

<?php
$user = $_GET['username'];
$pass = $_GET['password'];
$newUrl = 'http://www.example.com/' . $user . '/' . $pass;
echo '<a href="' . $newUrl . '">Link text here</a>';
?>

This results in a formatted url based on $_GET variables: http://www.example.com/username/password

edited Aug 31, 2012 at 6:39

answered Aug 31, 2012 at 6:17

Mic1780

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6 Comments

Mic1780 Over a year ago

Honestly, that is the easiest way. You already have the url root, and the $_GET array, so why not use what you have instead of making a pointless regexp. It is your choice to use my answer or not, but I do this for a living and this is what i would do.

ravi404 Over a year ago

where would <a href="$newUrl"> lead u to.? will there be such a page.?

Mic1780 Over a year ago

i updated my post to reflect what you are asking. The echo will create: <a href="www.example.com/username/password">Link text here</a>

ravi404 Over a year ago

where does this link(www.example.com/username/password) take the page to.?

Mic1780 Over a year ago

If you look at the question, you will see what he is asking. Which is taking $_GET vars and changing them to directories. wither it be from a header('Location: ...') or a link.

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