How to Implement URL Routing in PHP

Question

How to implement URL Routing in PHP.

Accepted Answer

If you use Apache you can do the URL routing via mod_rewrite.

Small example:

```
RewriteEngine On
RewriteRule ^(dir1)/?(path2)? main.php?dir=$1&path=$2
```

That'll have any request like

```
http://yoursite.com/dir1/path1 
```

served by

```
http://yoursite.com/main.php?dir=dir1&path=path2
```

More examples here.

The other alternative have every request redirect to a single php file

```
RewriteEngine On
RewriteRule (.*) main.php?request=$1
```

and then to do it in code, where you can use a similar approach, by having a set of regular expressions that are matched by some code and then redirected via header() or just internally.

How to Implement URL Routing in PHP

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