Need to turn this into a function

Hey, i'm wanting to learn more about functions. Is there a way this code below can be turned into a function? I want to have a functions page instead of having required pages pulled in for certain areas.

Right now it's setup so the index page requires this(points.php) file which contains:

<?php
session_start();
require('configure.php');

//---Variables---//
	$connection = mysql_connect($host,$dbuser,$dbpass)
		or die('MySQl Connection Error:' . mysql_error());
	mysql_select_db($dbname,$connection)
			or die('MySQL Error: Cannot select table');
	//---END Variables---//

//---If cannot connect---//
	if (!$connection) {
    	die("Could not connect: " . mysql_error()); 
	} else {
//---Everything is OK, Run---//
	$username = $_SESSION['username'];
	$sql = mysql_query("SELECT points FROM users WHERE username=('$username')") or die(mysql_error());
	// Mysql fetch row results
	$row = mysql_fetch_assoc($sql);
	echo ($row['points']);
	mysql_close($connection);
}
?>

PHP:

 

Try this;

<?php
function your_function($host,$dbuser,$dbpass,$dbname){
  session_start();
  require('configure.php');

  //---Variables---//    
  $connection = mysql_connect($host,$dbuser,$dbpass)        
    or die('MySQl Connection Error:' . mysql_error());    
  
  mysql_select_db($dbname,$connection)            
    or die('MySQL Error: Cannot select table');    

  //---END Variables---//
 
  //---If cannot connect---//    
  if (!$connection) {        
    die("Could not connect: " . mysql_error());     } 
  else {
    //---Everything is OK, Run---//    
    $username = $_SESSION['username'];    
    $sql = mysql_query("SELECT points FROM users WHERE username=('$username')") or die(mysql_error());    
    // Mysql fetch row results    
    $row = mysql_fetch_assoc($sql);    
    echo ($row['points']);    
    mysql_close($connection);
  }
}
?>

PHP:

 

Thank you, removing: $host,$dbuser,$dbpass,$dbname from function your_function($host,$dbuser,$dbpass,$dbname){ worked. LOL thanks

 

You must have those variables saved in your session or have register_globals turned on. Sometimes if $_SESSION['host'] is set then the default value for $host is set to this variable.

 

no I don't. I have $host,$dbpass,etc variables set in configure.php which is pulled in with require('configure.php'); in the function.

 

That explains it then