Fixed more template errors in order to get everything running with PHP 8.0.

Also: Fixed some tiny PHP errors.
Thanks for reporting, Matthias!

admin/panels/maintain/admin.maintain.php

@@ -109,7 +109,9 @@ class admin_maintain_updates extends AdminPanelAction {
 			$success = -1;
 		}
 
-		$this->smarty->assign('updates', $ver);
+		$this->smarty->assign('stableversion', $ver ['stable']);
+		$this->smarty->assign('unstableversion', $ver ['unstable']);
+		$this->smarty->assign('notice', $ver ['notice']);
 		$this->smarty->assign('fpweb', $this->fpweb);
 		$this->smarty->assign('sfweb', $this->sfweb);
 		$this->smarty->assign('success', $success);

admin/panels/maintain/admin.maintain.updates.tpl

@@ -1,7 +1,7 @@
 <h2>{$panelstrings.head}</h2>
 {include file=shared:errorlist.tpl}
-{$panelstrings.list|sprintf:$smarty.const.SYSTEM_VER:$sfweb:$updates.stable:$fpweb:$updates.unstable}
+{$panelstrings.list|sprintf:$smarty.const.SYSTEM_VER:$sfweb:$stableversion:$fpweb:$unstableversion}
-{if $updates.notice}
+{if $notice}
 <h5>{$panelstrings.notice}</h5>
-<p>{$updates.notice}</p>
+<p>{$notice}</p>
 {/if}

fp-includes/core/core.layout.php

@@ -1,38 +1,42 @@
 <?php
 
-	class LayoutDefault {
+class LayoutDefault {
+
 	var $content;
+
 	var $fpdb;
+
 	var $fp_widgets;
+
 	var $smarty;
+
 	var $config;
+
 	var $lang;
 
 	var $tpl = 'index.tpl';
 
 	var $message_queue = array();
 
-		function LayoutDefault($content=array()) {
+	function LayoutDefault($content = array()) {
-			
 		$this->pagecontent = $content;
 			
-			$this->fpdb =& new FPDB;
+			$this->fpdb =& new FPDB();
-			$GLOBALS['fpdb'] =& $this->fpdb;
+		$GLOBALS ['fpdb'] = & $this->fpdb;
 					        
-			$this->fp_widgets =& new widget_indexer;	
+			$this->fp_widgets =& new widget_indexer();
-			$GLOBALS['fp_widgets'] =& $this->fp_widgets;
+		$GLOBALS ['fp_widgets'] = & $this->fp_widgets;
 
-			$this->smarty =& $GLOBALS['_FP_SMARTY'];  
+		$this->smarty = & $GLOBALS ['_FP_SMARTY'];
-			
-			$GLOBALS['fp_config'] =& $this->config;
-			$this->config = $GLOBALS['fp_config']['general'];
 
+		$GLOBALS ['fp_config'] = & $this->config;
+		$this->config = $GLOBALS ['fp_config'] ['general'];
 
 		$this->theme = theme_loadsettings();
-			$GLOBALS['theme'] =& $this->theme;
+		$GLOBALS ['theme'] = & $this->theme;
 
 		$this->lang = lang_load();
-			$GLOBALS['lang'] =& $this->lang;
+		$GLOBALS ['lang'] = & $this->lang;
 
 		// user_loggedin() or sess_setup();
 
@@ -44,13 +48,9 @@
 		$this->smarty->cache_dir = SMARTY_DIR . 'cache/';
 		$this->smarty->caching = 0;
 
-	
-			
 		do_action('init');
-
 	}
 
-		
 	function display() {
 		$this->main();
 		theme_init($this->smarty, $this);
@@ -59,79 +59,82 @@
 		unset($this->smarty);
 
 		do_action('shutdown');
-			
 	}
+
 	/*
-		
+	 *
-		function post_message($module, $ring, $message) {
+	 * function post_message($module, $ring, $message) {
-			$this->message_queue[$module][$ring][]=$message;
+	 * $this->message_queue[$module][$ring][]=$message;
-			
+	 *
-		}
+	 * }
-		
+	 *
-		function flush_messages($module, $ring=-1) {
+	 * function flush_messages($module, $ring=-1) {
-		
+	 *
-			$msg_arr=array();
+	 * $msg_arr=array();
-			if ($ring<0)
+	 * if ($ring<0)
-				$ring_arr =
+	 * $ring_arr =
-					array_keys($this->message_queue[$module]);
+	 * array_keys($this->message_queue[$module]);
-			else
+	 * else
-				$ring_arr = array($ring);
+	 * $ring_arr = array($ring);
-			
+	 *
-			foreach($ring_arr as $this_ring) {
+	 * foreach($ring_arr as $this_ring) {
-				$localq=& $this->message_queue[$module][$this_ring];
+	 * $localq=& $this->message_queue[$module][$this_ring];
-				foreach ($localq as $msg) {
+	 * foreach ($localq as $msg) {
-					$msg_arr[]=$msg;
+	 * $msg_arr[]=$msg;
-				}			
+	 * }
-			}
+	 * }
-			
+	 *
-			$this->smarty->append('err', $msg_arr);
+	 * $this->smarty->append('err', $msg_arr);
-			return $msg_arr;
+	 * return $msg_arr;
-		}
+	 * }
 	 */
+}
 
-	}
+class Abstract_LayoutIndex extends LayoutDefault {
-		
-	class Abstract_LayoutIndex extends LayoutDefault {
 
 	var $tpl = 'index.tpl';
 
-	}
+}
 
-	class Abstract_LayoutComment extends LayoutDefault {
+class Abstract_LayoutComment extends LayoutDefault {
 
 	var $tpl = 'comments.tpl';
 
-	}
+}
 
-	class Abstract_LayoutDialog extends LayoutDefault {
+class Abstract_LayoutDialog extends LayoutDefault {
 
 	var $tpl = 'default.tpl';
 
-		function page($subject, $content, $rawcontent=false) {
+	function page($subject, $content, $rawcontent = false) {
 		$this->pagecontent = array(
-					'subject'=>$subject,
+			'subject' => $subject,
-					'content'=>$content
+			'content' => $content
 		);
 
-			if ($rawcontent) $this->smarty->assign('rawcontent', true);
+		if ($rawcontent) {
-			
+			$this->smarty->assign('rawcontent', true);
+		} else {
+			$this->smarty->assign('rawcontent', false);
+		}
 	}
 
 	function pagecontent($params, $content, &$smarty, &$repeat) {
 		if ($this->pagecontent) {
 			$this->smarty->assign($this->pagecontent);
 			return $content;
-			} else return;
+		} else
-			
+			return;
 	}
 
 	function display() {
-			$this->smarty->register_block('page', array(&$this, 'pagecontent'));
+		$this->smarty->register_block('page', array(
+			&$this,
+			'pagecontent'
+		));
 		parent::display();
 	}
 
-		
+}
-	}
-
 
 ?>

fp-interface/sharedtpls/comment-atom.tpl

@@ -5,7 +5,7 @@
 	<subtitle>{$flatpress.subtitle}</subtitle>
 	<link href="{$smarty.const.BLOG_BASEURL}" />
 	<link rel="self" href="{$smarty.server.REQUEST_URI|escape}" />
-	<generator uri="http://www.flatpress.org/" version="{$flatpress.version}">
+	<generator uri="http://www.flatpress.org/" version="{$smarty.const.SYSTEM_VER}">
   		FlatPress
 	</generator>
 	<rights> {$flatpress.author} {$smarty.now|date_format:'%Y'} </rights>

fp-interface/sharedtpls/comment-rss.tpl

@@ -8,7 +8,7 @@
 		<title>{$flatpress.title} » {$subject}</title>
 		<link>{$the_comment_link}</link>
 		<description><![CDATA[{$flatpress.subtitle}]]></description>
-		<copyright>Copyright {$smarty.now|date_format:"$Y"}, {$flatpress.author}</copyright>
+		<copyright>Copyright {'Y'|date}, {$flatpress.author}</copyright>
  		{*<managingEditor>{$flatpress.email} ({$flatpress.author})</managingEditor>*}
 		<language>{$fp_config.locale.lang}</language>
 		<atom:link rel="self" href="{'rss2'|theme_comments_feed_link:$id}" type="application/rss+xml" />

fp-plugins/prettyurls/plugin.prettyurls.php

@@ -71,7 +71,7 @@ class Plugin_PrettyURLs {
 	function permalink($str, $id) {
 		global $fpdb, $post;
 
-		if (PRETTYURLS_TITLES)
+		if (isset($post) && PRETTYURLS_TITLES)
 			$title = sanitize_title($post ['subject']);
 		else
 			$title = $id;
@@ -499,7 +499,7 @@ class Plugin_PrettyURLs {
 		if (isset($this->fp_params ['paged']) && $this->fp_params ['paged'] > 1)
 			$page = $this->fp_params ['paged'];
 
-		$page += $v;
+		$page += ($v . '');
 
 		if ($page > 0) {
 			$l .= 'page/' . $page . '/';