Clean up some unused variables.

This is essentially 1ccc0c8c1a without the renames and some other things related to Psalm.

backend.php

@@ -32,8 +32,6 @@
 
 	startup_gettext();
 
-	$script_started = microtime(true);
-
 	if (!init_plugins()) {
 		return;
 	}

classes/API.php

@@ -691,20 +691,6 @@ class API extends Handler {
 				}
 			}
 
-			$params = array(
-				"feed" => $feed_id,
-				"limit" => $limit,
-				"view_mode" => $view_mode,
-				"cat_view" => $is_cat,
-				"search" => $search,
-				"override_order" => $order,
-				"offset" => $offset,
-				"since_id" => $since_id,
-				"include_children" => $include_nested,
-				"check_first_id" => $check_first_id,
-				"skip_first_id_check" => $skip_first_id_check
-			);
-
 			$qfh_ret = [];
 
 			if (!$is_cat && is_numeric($feed_id) && $feed_id < PLUGIN_FEED_BASE_INDEX && $feed_id > LABEL_BASE_INDEX) {

classes/Article.php

@@ -606,7 +606,7 @@ class Article extends Handler_Protected {
 				foreach ($elems as $e) {
 					if ($e->nodeName == "iframe") {
 						$matches = [];
-						if ($rrr = preg_match("/\/embed\/([\w-]+)/", $e->getAttribute("src"), $matches)) {
+						if (preg_match("/\/embed\/([\w-]+)/", $e->getAttribute("src"), $matches)) {
 							$article_image = "https://img.youtube.com/vi/" . $matches[1] . "/hqdefault.jpg";
 							$article_stream = "https://youtu.be/" . $matches[1];
 							$article_kind = Article::ARTICLE_KIND_YOUTUBE;

classes/Db_Migrations.php

@@ -35,7 +35,7 @@ class Db_Migrations {
 
 		$sth = $this->pdo->query("SELECT * FROM {$this->migrations_table}");
 
-		if ($res = $sth->fetch()) {
+		if ($sth->fetch()) {
 			$sth = $this->pdo->prepare("UPDATE {$this->migrations_table} SET schema_version = ?");
 		} else {
 			$sth = $this->pdo->prepare("INSERT INTO {$this->migrations_table} (schema_version) VALUES (?)");

classes/DiskCache.php

@@ -206,7 +206,7 @@ class DiskCache implements Cache_Adapter {
 	}
 
 	public function __construct(string $dir) {
-		foreach (PluginHost::getInstance()->get_plugins() as $n => $p) {
+		foreach (PluginHost::getInstance()->get_plugins() as $p) {
 			if (implements_interface($p, "Cache_Adapter")) {
 
 				/** @var Cache_Adapter $p */

classes/FeedParser.php

@@ -52,7 +52,6 @@ class FeedParser {
 	}
 
 	function init() : void {
-		$root = $this->doc->firstChild;
 		$xpath = new DOMXPath($this->doc);
 		$xpath->registerNamespace('atom', 'http://www.w3.org/2005/Atom');
 		$xpath->registerNamespace('atom03', 'http://purl.org/atom/ns#');

classes/Feeds.php

@@ -1132,8 +1132,6 @@ class Feeds extends Handler_Protected {
 			return ["code" => 8];
 		}
 
-		$pdo = Db::pdo();
-
 		$url = UrlHelper::validate($url);
 
 		if (!$url) return ["code" => 2];
@@ -1277,8 +1275,6 @@ class Feeds extends Handler_Protected {
 	 */
 	static function _find_by_title(string $title, bool $cat = false, int $owner_uid = 0) {
 
-		$res = false;
-
 		if ($cat) {
 			$res = ORM::for_table('ttrss_feed_categories')
 				->where('owner_uid', $owner_uid ? $owner_uid : $_SESSION['uid'])
@@ -1735,7 +1731,6 @@ class Feeds extends Handler_Protected {
 			$vfeed_query_part = $override_vfeed;
 		}
 
-		$feed_title = "";
 		$feed_site_url = "";
 		$last_error = "";
 		$last_updated = "";
@@ -2157,7 +2152,7 @@ class Feeds extends Handler_Protected {
 	}
 
 	static function _clear_access_keys(int $owner_uid): void {
-		$key = ORM::for_table('ttrss_access_keys')
+		ORM::for_table('ttrss_access_keys')
 			->where('owner_uid', $owner_uid)
 			->delete_many();
 	}
@@ -2168,7 +2163,7 @@ class Feeds extends Handler_Protected {
 	 * @see Handler_Public#generate_syndicated_feed()
 	 */
 	static function _update_access_key(string $feed_id, bool $is_cat, int $owner_uid): ?string {
-		$key = ORM::for_table('ttrss_access_keys')
+		ORM::for_table('ttrss_access_keys')
 			->where('owner_uid', $owner_uid)
 			->where('feed_id', $feed_id)
 			->where('is_cat', $is_cat)
@@ -2212,8 +2207,6 @@ class Feeds extends Handler_Protected {
 		if (!$purge_interval) $purge_interval = self::_get_purge_interval($feed_id);
 
 		$pdo = Db::pdo();
-
-		$owner_uid = false;
 		$rows_deleted = 0;
 
 		$sth = $pdo->prepare("SELECT owner_uid FROM ttrss_feeds WHERE id = ?");

classes/Mailer.php

@@ -12,7 +12,7 @@ class Mailer {
 		$to_address = $params["to_address"];
 		$subject = $params["subject"];
 		$message = $params["message"];
-		$message_html = $params["message_html"] ?? "";
+		// $message_html = $params["message_html"] ?? "";
 		$from_name = $params["from_name"] ?? Config::get(Config::SMTP_FROM_NAME);
 		$from_address = $params["from_address"] ?? Config::get(Config::SMTP_FROM_ADDRESS);
 		$additional_headers = $params["headers"] ?? [];

classes/OPML.php

@@ -612,8 +612,6 @@ class OPML extends Handler_Protected {
 	function opml_import(int $owner_uid, string $filename = "") {
 		if (!$owner_uid) return;
 
-		$doc = false;
-
 		if (!$filename) {
 			if ($_FILES['opml_file']['error'] != 0) {
 				print_error(T_sprintf("Upload failed with error code %d",
@@ -644,8 +642,6 @@ class OPML extends Handler_Protected {
 			return false;
 		}
 
-		$loaded = false;
-
 		$doc = new DOMDocument();
 
 		if (version_compare(PHP_VERSION, '8.0.0', '<')) {

classes/Pref_Prefs.php

@@ -1223,13 +1223,10 @@ class Pref_Prefs extends Handler_Protected {
 							$proc = proc_open("git clone " . escapeshellarg($plugin['clone_url']) . " " . $tmp_dir,
 											$descriptorspec, $pipes, sys_get_temp_dir());
 
-							$status = 0;
-
 							if (is_resource($proc)) {
 								$rv["stdout"] = stream_get_contents($pipes[1]);
 								$rv["stderr"] = stream_get_contents($pipes[2]);
-								$status = proc_close($proc);
-								$rv["git_status"] = $status;
+								$rv["git_status"] = proc_close($proc);
 
 								// yeah I know about mysterious RC = -1
 								if (file_exists("$tmp_dir/init.php")) {
@@ -1546,7 +1543,7 @@ class Pref_Prefs extends Handler_Protected {
 	}
 
 	function deleteAppPasswords(): void {
-		$passwords = ORM::for_table('ttrss_app_passwords')
+		ORM::for_table('ttrss_app_passwords')
 			->where('owner_uid', $_SESSION['uid'])
 			->where_in('id', $_REQUEST['ids'] ?? [])
 			->delete_many();

classes/Prefs.php

@@ -260,8 +260,6 @@ class Prefs {
 
 			list ($def_val, $type_hint) = self::_DEFAULTS[$pref_name];
 
-			$cached_value = $this->_get_cache($pref_name, $owner_uid, $profile_id);
-
 			if ($this->_is_cached($pref_name, $owner_uid, $profile_id)) {
 				$cached_value = $this->_get_cache($pref_name, $owner_uid, $profile_id);
 				return Config::cast_to($cached_value, $type_hint);

classes/RSSUtils.php

@@ -873,7 +873,7 @@ class RSSUtils {
 
 					$pdo->commit();
 
-					$entry_obj = ORM::for_table('ttrss_entries')
+					ORM::for_table('ttrss_entries')
 						->find_one($base_entry_id)
 						->set('date_updated', Db::NOW())
 						->save();
@@ -1028,7 +1028,7 @@ class RSSUtils {
 					WHERE guid IN (?, ?, ?)");
 				$csth->execute([$entry_guid, $entry_guid_hashed, $entry_guid_hashed_compat]);
 
-				if (!$row = $csth->fetch()) {
+				if (!$csth->fetch()) {
 
 					Debug::log("base guid [$entry_guid or $entry_guid_hashed] not found, creating...", Debug::LOG_VERBOSE);
 
@@ -1746,7 +1746,6 @@ class RSSUtils {
 	/** migrates favicons from legacy storage in feed-icons/ to cache/feed-icons/using new naming (sans .ico suffix) */
 	static function migrate_feed_icons() : void {
 		$old_dir = Config::get(Config::ICONS_DIR);
-		$new_dir = Config::get(Config::CACHE_DIR) . '/feed-icons';
 
 		$dh = opendir($old_dir);
 

classes/UserHelper.php

@@ -250,7 +250,6 @@ class UserHelper {
 	static function reset_password(int $uid, bool $format_output = false, string $new_password = ""): void {
 
 		$user = ORM::for_table('ttrss_users')->find_one($uid);
-		$message = "";
 
 		if ($user) {
 

include/sessions.php

@@ -93,7 +93,7 @@
 		$sth = \Db::pdo()->prepare("SELECT id FROM ttrss_sessions WHERE id=?");
 		$sth->execute([$id]);
 
-		if ($row = $sth->fetch()) {
+		if ($sth->fetch()) {
 			$sth = \Db::pdo()->prepare("UPDATE ttrss_sessions SET data=?, expire=? WHERE id=?");
 			$sth->execute([$data, $expire, $id]);
 		} else {

index.php

@@ -45,7 +45,7 @@
 
 	<style type="text/css">
 	<?php
-		foreach (PluginHost::getInstance()->get_plugins() as $n => $p) {
+		foreach (PluginHost::getInstance()->get_plugins() as $p) {
 			if (method_exists($p, "get_css")) {
 				echo $p->get_css();
 			}

plugins/af_psql_trgm/init.php

@@ -385,7 +385,7 @@ class Af_Psql_Trgm extends Plugin {
 			$sth = $this->pdo->prepare("SELECT id FROM ttrss_feeds WHERE id = ? AND owner_uid = ?");
 			$sth->execute([$feed, $_SESSION['uid']]);
 
-			if ($row = $sth->fetch()) {
+			if ($sth->fetch()) {
 				array_push($tmp, $feed);
 			}
 		}

public.php

@@ -10,8 +10,6 @@
 
 	startup_gettext();
 
-	$script_started = microtime(true);
-
 	if (!init_plugins()) return;
 
 	$span = OpenTelemetry\API\Trace\Span::getCurrent();

update.php

@@ -188,7 +188,6 @@
 	Debug::log("Lock: $lock_filename");
 
 	$lock_handle = make_lockfile($lock_filename);
-	$must_exit = false;
 
 	if (isset($options["task"]) && isset($options["pidlock"])) {
 		$waits = $options["task"] * 5;
@@ -512,8 +511,6 @@
 			exit(1);
 		}
 
-		$rc = -1;
-
 		if ($enable) {
 			Debug::log("Enabling API access for user $login...");
 			$rc = Prefs::set(Prefs::ENABLE_API_ACCESS, true, $uid, null);