a bit of optimization

inc/config.php

@@ -206,13 +206,13 @@
 	// Maximum number of cites per post (protects against abuse)
 	$config['max_cites']	= 45;
 	// Maximum number of cross-board links/cites per post
-	$config['max_cross']	= $config['max_cites'];
+	$config['max_cross']	= &$config['max_cites'];
 	
 	// Maximum image upload size in bytes
 	$config['max_filesize']	= 10*1024*1024; // 10MB
 	// Maximum image dimensions
 	$config['max_width']	= 10000;
-	$config['max_height']	= $config['max_width']; // 1:1
+	$config['max_height']	= &$config['max_width']; // 1:1
 	// Reject a post if its image is already in active content
 	$config['image_reject_repost']	= true;
 	/**
@@ -392,11 +392,11 @@
 	// Show expired bans in the ban list (they are kept in cache until the culprit returns)
 	$config['mod']['view_banexpired'] = true;
 	// View ban for IP address
-	$config['mod']['view_ban'] = $config['mod']['view_banlist'];
+	$config['mod']['view_ban'] = &$config['mod']['view_banlist'];
 	// View IP address notes
 	$config['mod']['view_notes'] = JANITOR;
 	// Create notes
-	$config['mod']['create_notes'] = $config['mod']['view_notes'];
+	$config['mod']['create_notes'] = &$config['mod']['view_notes'];
 	// Remote notes
 	$config['mod']['remove_notes'] = ADMIN;
 	// Create a new board

inc/display.php

@@ -102,7 +102,7 @@
 		global $config;
 		
 		if(!isset($len))
-			$len = $config['mod']['snippet_length'];
+			$len = &$config['mod']['snippet_length'];
 		
 		// Replace line breaks with some whitespace
 		$body = str_replace('<br/>', '  ', $body);
@@ -188,7 +188,7 @@
 	class Post {
 		public function __construct($id, $thread, $subject, $email, $name, $trip, $capcode, $body, $time, $thumb, $thumbx, $thumby, $file, $filex, $filey, $filesize, $filename, $ip, $embed, $root=null, $mod=false) {
 			global $config;
-			if(!isset($root)) $root = $config['root'];
+			if(!isset($root)) $root = &$config['root'];
 			
 			$this->id = $id;
 			$this->thread = $thread;
@@ -368,7 +368,7 @@
 	class Thread {
 		public function __construct($id, $subject, $email, $name, $trip, $capcode, $body, $time, $thumb, $thumbx, $thumby, $file, $filex, $filey, $filesize, $filename, $ip, $sticky, $locked, $embed, $root=null, $mod=false, $hr=true) {
 			global $config;
-			if(!isset($root)) $root = $config['root'];
+			if(!isset($root)) $root = &$config['root'];
 			
 			$this->id = $id;
 			$this->subject = utf8tohtml($subject);

inc/functions.php

@@ -55,7 +55,7 @@
 				')$/i';
 		
 		if(!isset($config['cookies']['path']))
-			$config['cookies']['path'] = $config['root'];
+			$config['cookies']['path'] = &$config['root'];
 			
 		if(!isset($config['dir']['static']))
 			$config['dir']['static'] = $config['root'] . 'static/';
@@ -80,7 +80,7 @@
 			$config['uri_img'] = sprintf($config['uri_img'], $board['dir']);
 		
 		if(!isset($config['uri_stylesheets']))
-			$config['uri_stylesheets'] = $config['root'];
+			$config['uri_stylesheets'] = &$config['root'];
 		
 		if($config['root_file']) {
 			chdir($config['root_file']);
@@ -94,7 +94,7 @@
 		if($config['ipv6_ipv4'] && isset($_SERVER['REMOTE_ADDR'])) {
 			// Keep the original address to properly comply with other board configurations
 			if(!isset($__ip))
-				$__ip = $_SERVER['REMOTE_ADDR'];
+				$__ip = &$_SERVER['REMOTE_ADDR'];
 			
 			// ::ffff:0.0.0.0
 			if(preg_match('/^\:\:(ffff\:)?(\d+\.\d+\.\d+\.\d+)$/', $__ip, $m))
@@ -156,7 +156,7 @@
 		$query = query("SELECT `value` AS `theme` FROM `theme_settings` WHERE `name` = 'theme'") or error(db_error());
 		if($theme = $query->fetch()) {
 			// A theme is installed
-			$_theme = $theme['theme'];
+			$_theme = &$theme['theme'];
 			
 			$theme = loadThemeConfig($_theme);
 			
@@ -227,8 +227,8 @@
 		}
 				
 		foreach($config['purge'] as &$purge) {
-			$host = $purge[0];
+			$host = &$purge[0];
-			$port = $purge[1];
+			$port = &$purge[1];
 			$http_host = isset($purge[2]) ? $purge[2] : $_SERVER['HTTP_HOST'];
 			$request = "PURGE {$uri} HTTP/1.0\r\nHost: {$http_host}\r\nUser-Agent: Tinyboard\r\nConnection: Close\r\n\r\n";
 			if($fp = fsockopen($host, $port, $errno, $errstr, $config['purge_timeout'])) {
@@ -647,7 +647,7 @@
 				file_unlink($board['dir'] . $config['dir']['res'] . sprintf($config['file_page'], $post['id']));
 			} elseif($query->rowCount() == 1) {
 				// Rebuild thread
-				$rebuild = $post['thread'];
+				$rebuild = &$post['thread'];
 			}
 			if($post['thumb']) {
 				// Delete thumbnail