<?
	// This let's you see more errors
    ini_set('error_reporting', E_ALL);
    ini_set('display_errors', true);

	
	$type = "nothing";
	
	// isset will tell you if the query exists
	if (isset($_GET['type'])) {
	  $type = $_GET['type'];
	}
	
    if ($type == "save")
    {
       	// Open a file called saved.txt in the data folder
       	// This folder must be WORLD writable, you can set permissions:  chmod 777
       	// "a" is for append
       	$file = fopen("data/saved.txt","a"); 
       	
		//there are limits to the $sign tipping off variables, if it is an array, you have to enclose in curly brackets
		$x = $_GET['x'];
		$y = $_GET['y'];
		
		// Write a line to the text file
		fwrite($file,"$x,$y\r");
		fclose($file);
		
		echo "Saved: $x,$y";
		
    }
    else if ($type == "load")
    {
    	// For loading, just show it all
        $filelines = file("data/saved.txt");  
        $num = sizeof($filelines);
        if ($num > 0) {
          echo $filelines[$num - 1];
        }
    }
    // 
	 else if ($type == "clear")
    {
    	// For clear
    	// Just makes a new file
        $file = fopen("data/saved.txt","w");
		fclose($file);
		echo "File is cleared";
    }
    else
    {
        echo "Um, you didn't tell me what to do!";
    }
?>