Merge pull request #3 from brunomarks/master

Possibility of redefine the file extension and append trailing if is missing in cache folder parameter

simpleCache.php

@@ -15,10 +15,19 @@ class SimpleCache {
 	var $cache_path = 'cache/';
 	//Length of time to cache a file in seconds
 	var $cache_time = 3600;
+	// possibility of define the file extension
+	var $cache_extension = '.cache';
 
 	//This is just a functionality wrapper function
 	function get_data($label, $url)
 	{
+		// append trailing if is missing
+		$path_size = strlen($this->cache_path);
+		if (substr($this->cache_path, $path_size - 1) !== '/') 
+		{
+			$this->cache_path .= '/';
+		}
+
 		if($data = $this->get_cache($label)){
 			return $data;
 		} else {
@@ -30,13 +39,13 @@ function get_data($label, $url)
 
 	function set_cache($label, $data)
 	{
-		file_put_contents($this->cache_path . $this->safe_filename($label) .'.cache', $data);
+		file_put_contents($this->cache_path . $this->safe_filename($label) . $this->cache_extension, $data);
 	}
 
 	function get_cache($label)
 	{
 		if($this->is_cached($label)){
-            $filename = $this->cache_path . $this->safe_filename($label) .'.cache';
+            $filename = $this->cache_path . $this->safe_filename($label) . $this->cache_extension;
 			return file_get_contents($filename);
 		}
 
@@ -45,7 +54,7 @@ function get_cache($label)
 
 	function is_cached($label)
 	{
-		$filename = $this->cache_path . $this->safe_filename($label) .'.cache';
+		$filename = $this->cache_path . $this->safe_filename($label) . $this->cache_extension;
 
 		if(file_exists($filename) && (filemtime($filename) + $this->cache_time >= time())) return true;