filtering data in amfphp

[fightingwolf]

Hi I'm new to php. I've been able to connect a flash project to a mysql database via amfphp. What i'd like to know is how can I filter out only one row from a table.

This is the script I'm using:

<?php
class CallWP
{
public function __construct()
{
	
	mysql_connect ("address", "user","password");
	mysql_select_db ("WordPressDS");
	}
	
	/**
	* Retrieves tutorial data
	*@returns title,description,and url
	*/
	function getWPtitle()
	{
	return mysql_query("SELECT post_content FROM wp_posts");
		}
}

?>

What I want is to only grab one row of post_content.