Feet Have Been

<?php
/*
 * @file		Config.php
 * @description	contains all essential functions and configuration options
 */
 
/*
 * Logging Directory
 */
define('LOG_DIR','logs/');
 
/*
 * Enable Logging?
 */ 
define('LOG',true);
 
/*
 * The database variables below configure the different databases. 
 * To set the database use the $use variable
 *
 */
$db['dev']['host'] = 'localhost'; 
$db['dev']['user'] = 'root'; 
$db['dev']['pass'] = 'root';
$db['dev']['name'] = 'test_db'; 
 
$use = $db['dev']; 
 
/*
 * Default class loader. To ensure single instances of each class, never initialize a class 
 * directly. Instead, use load_class(class_name) to initiate classes. 
 * 
 *  @param	string name of class to be loaded
 * 	@param	string path to class with trailing slash included
 *  @return	object reference to object
 */
function &load_class($class,$dir = './'){
	static $instance; 
 
	if(!isset($instance[$class])){
		if(file_exists($dir.$class.'.php')){
			include($dir.$class.'.php');
			$instance[$class] = new $class(); 
			return($instance[$class]);
		}
		else
			error($class.' does not exist in the Library'); 
	}
}
 
/*
 * Displays and optionally logs error messages
 * 
 * @param	string the message to be displayed
 * @param 	bool enables logging for particular message
 */
function error($message,$show = false){
 
	if(LOG){
		$file = LOG_DIR.''.date('d_m_y').'.log'; 
		$fp = fopen($file,'a'); 
		if(fwrite($fp,date('h:i:s a',time())."\t-\t".$message."\t".$_SERVER['PHP_SELF']."\r\n")){
			fclose($fp); 
		}
	}
	if($show){
		echo '<div class="error">'.$message.'</div>'; 
	}
}
?>

<?php 
$myclass = load_class('myclass','path/to/class/');
?>

<?php
error('This error message will be logged only!'); 
error('This error message will be logged AND displayed!',true);
?>