Question: I am trying to call a php function from .net. I tried to a webrequest method but I am not sure how to specify the function to call in the url. A link below shows the method I am trying to call.

Thanks in advance for any help

<http://codex.wordpress.org/Function_Reference/wp_hash_password>

Answer: 
You would first need to create a webpage on the PHP server that calls the function you want, and returns the results (ideally in SOAP or XML format). Then, you can GET that webpage through the .NET WebRequest mechanism as you pointed out.
To call the function from C# you have to create a PHP file that executes the function, for example

`http://www.somesite.com/ScriptWithTheFunction.php`

with the content:

```
<?php 

    //your includes here

    //You can set the value of $password from a $_GET parameter
    echo wp_hash_password( $password );

```

and with C# you use `WebRequest` to get the output of the function (The same response you get from visiting `http://www.somesite.com/ScriptWithTheFunction.php` with your web browser)