Ok, now you have your own game portal. Let’s call it triqui.com.
You want to share a link with your friends, or want search engine to index it properly.
If I want you to play Jamag, I have to give you this link
Now, I would like you to tell me how can you understand I am talking about Jamag from this link http://www.triqui.com/play.php?id=1713.
Now let’s understand why I have to write that
play.php?id=xxxx to play a game.
All information about the games is stored in a database, and every game has an unique id assigned by the script.
Jamag’s id is 1713, so when I pass this value, the php script knows where to retrieve information about the game.
If you want to play Jamag on Kongregate, this is the link:
Seems like Kongregate has a directory to store my games (triqui) and a subdirectory for every game I made.
Obviously that’s not true. This is possible thanks to…
.htaccess is used to implement custom error pages or password protected directories. But you can do a lot more with this file.
First, let me point that
.htaccess is the file extension, not the filename. The filename does not exists.
That’s what I created with my favourite text editor (notepad…)
ErrorDocument 404 /index.php RewriteEngine on RewriteRule ^id/([^/\.]+)/?$ /play.php?id=$1 [L]
Let’s see what is it:
ErrorDocument detects any document error. If you don’t know what I am talking about, here it is a brief list:
401: Unauthorized – The request requires user authentication.
403: Forbidden – The server understood the request, but is refusing to fulfill it.
404: Not Found – The server has not found anything matching the Request-URI.
So ErrorDocument 404 refers to a “not found” error… that happens when the user looks for a page that does not exist
/index.php is the path where to redirect the user if he requested a page that does not exist
We can say that
ErrorDocument 404 /index.php means “if someone requested a page that does not exist, then redirect him to index.php”.
And that’s what happens: go to http://www.triqui.com/dfgretre (a page that does not exist) and you will be redirected to home page.
Just in one line of code…
Line 2: Activation of the
RewriteEngine module, a rewriting engine to rewrite requested URLs on the fly.
Not all servers support the rewrite engine.
In order to determine if your server supports it, you have to upload a php file with just:
and see what happens. In the result page, search for “mod_rewrite”.
If you find it in the “Apache loaded modules” section, then you know your server supports the rewrite engine, although in a server with php version 4.4.7 I was able to make it work even if the search returned a negative result.
Line 3: The core instruction:
RewriteRule looks if the current URL matches with the regular expression passed as first parameter.
^id/([^/\.]+)/?$ is a regular expression, and even if I am planning to make a tutorial about regular expressions (reg exps from now on), at the moment I am just recommending you this Wikipedia article.
The second parameter of
RewriteRule is the substitution.
Basically this instruction says: if the page starts with
^id/) then copy everything that’s not a slash, a backslash or a period (
([^/\.]+)) and make sure that after the starting matched
id there is only a slash (
/?$)… then load the page
/play.php?id=$1, pasting the characters previously copied in place of $1.
[L] tells not to search for any more rule if this one was satisfied.
In an even basic way, the script says:
And that’s what happens if you go to http://www.triqui.com/id/1713/.
I hust had to upload that
.htaccess file in my root directory.
You may say there is not a big difference between
/id/1713/ but this is the first step to friendly URLs generation.
Stay tuned for the next update.