mySQL Class

or die(mysql_error());

<?php
class mySQL { //define the class
var $data = array(); //variable to array the data base info.
var $persistent_connection = false; //Persistent connection
var $query = array(); //array the queries coming in..
function connect(){ //the connection function
if($this->persistent_connection == 'false'){ //check if persistent connection is true or not
$link = mysql_connect($this->data["host"], $this->data["user"], $this->data["pass"]) or die(mysql_error()); //use this if not
}else{ //or..
$link = mysql_pconnect($this->data["host"], $this->data["user"], $this->data["pass"]) or die(mysql_error()); //use this if it is..
} //end persistent connection check
mysql_select_db($this->data["data"], $link); //select the database with above details..
} //end the connect function
function query($sql){ //define the query function
$Query = mysql_query($sql) or die(mysql_error()); //do the query or die
return $Query; //return with the results
} //end the query function
function fetchData($sql){ //the fetchData function
$Query = mysql_fetch_array($sql) or die(mysql_error()); //fetch the array of data or die with an error..
return $Query; //return with the results.
} //end the fetch data 
function numRows($sql){ //number the rows
$Query = mysql_num_rows($sql) or die(mysql_error()); //number the data sent or die with an error
return $Query; //return results..
} //end the function
function close(){ //close the mySQL connection function
mysql_close(); //close it ^^
} //end function
} //end the class
?>

<?php
include("mysql.class.php"); //get the mySQL Class File
$data = array( //array data
    "host" => "localhost", //host
    "user" => "root", //username
    "pass" => "pw", //password
    "data" => "test", //the database..
    ); //end array
$mySQL = new mySQL; //define a new class
$mySQL->data = $data; //the data for connecting to mySQL
$mySQL->connect(); //connect to the database
?>

$mySQL->query("QUERY HERE");

$mySQL->numRows("QUERY OR VARIABLE HERE");

$mySQL->fetchData("QUERY OR VARIABLE FOR DATA HERE");

$mySQL->close();