Merge pull request #13 from JorgenEvens/chore/update-readme

[docs] Update README with realpath.

Author: JorgenEvens

README.md

@@ -1,13 +1,20 @@
 php-cache-dashboard
 ===================
 
-A dashboard for PHP Opcache and APCu
+A dashboard for
+[PHP Opcache](http://php.net/manual/en/intro.opcache.php),
+[APCu](http://php.net/manual/en/intro.apcu.php) and
+[realpath](http://php.net/manual/en/function.realpath-cache-get.php)
 
 ## Prerequisites
 
  - PHP
+
+and one or more of the supported caches
+
  - PHP OpCache (opcache extension for php5, included by default in php5.5+)
  - APC or APCu extension
+ - Realpath cache ( available since PHP 5.3.2+ )
 
 ## Supported operations
 
@@ -17,6 +24,8 @@ A dashboard for PHP Opcache and APCu
  - Delete keys based on regular expression
  - Selecting all keys
  - Deleting keys without regular expressions
+ - Sort on any data column
+ - View APCu entry contents
 
 ## Usage
 
@@ -25,6 +34,44 @@ Navigate to the page using your browser and you will receive cache information.
 
 ![Screenshot of php-cache-dashboard](http://jorgen.evens.eu/github/php-cache-dashboard.png)
 
+## Disabling caches
+
+Information about specific caches can be disabled by setting the `ENABLE_<cache>` key to false.
+The default code tests whether the specific cache is available and supported before enabling it.
+
+### APC / APCu
+
+```php
+<?php
+// Enable APC
+define('ENABLE_APC', true);
+
+// Disable APC
+define('ENABLE_APC', false);
+```
+
+### OPcache
+
+```php
+<?php
+// Enable OPcache
+define('ENABLE_OPCACHE', true);
+
+// Disable OPcache
+define('ENABLE_OPCACHE', false);
+```
+
+### Realpath
+
+```php
+<?php
+// Enable Realpath
+define('ENABLE_REALPATH', true);
+
+// Disable Realpath
+define('ENABLE_REALPATH', false);
+```
+
 ## Contributing
 
 I really appreciate any contribution you would like to make, so don't hesitate to report an issue or submit pull requests.