diff --git a/tests/phan/config.php b/.phan/config.php
similarity index 56%
rename from tests/phan/config.php
rename to .phan/config.php
index 83214eee..b122a73e 100644
--- a/tests/phan/config.php
+++ b/.phan/config.php
@@ -1,18 +1,18 @@
 <?php
 
-$cfg = require __DIR__ . '/../../vendor/mediawiki/mediawiki-phan-config/src/config.php';
+$cfg = require __DIR__ . '/../vendor/mediawiki/mediawiki-phan-config/src/config.php';
 
 $cfg['directory_list'] = array_merge(
 	$cfg['directory_list'],
 	[
-		'./../../extensions/Scribunto',
+		'../../extensions/Scribunto',
 	]
 );
 
 $cfg['exclude_analysis_directory_list'] = array_merge(
 	$cfg['exclude_analysis_directory_list'],
 	[
-		'./../../extensions/Scribunto',
+		'../../extensions/Scribunto',
 	]
 );
 
diff --git a/composer.json b/composer.json
index 7b87e007..0b618d5a 100644
--- a/composer.json
+++ b/composer.json
@@ -4,7 +4,7 @@
 		"jakub-onderka/php-console-highlighter": "0.3.2",
 		"mediawiki/mediawiki-codesniffer": "24.0.0",
 		"mediawiki/minus-x": "0.3.1",
-		"mediawiki/mediawiki-phan-config": "0.3.0"
+		"mediawiki/mediawiki-phan-config": "0.5.0"
 	},
 	"scripts": {
 		"fix": [
diff --git a/includes/ExprParser.php b/includes/ExprParser.php
index f6a80432..a1f17bfa 100644
--- a/includes/ExprParser.php
+++ b/includes/ExprParser.php
@@ -202,10 +202,12 @@ class ExprParser {
 
 			// First the unlimited length classes
 
+			// @phan-suppress-next-line PhanParamSuspiciousOrder false positive
 			if ( false !== strpos( EXPR_WHITE_CLASS, $char ) ) {
 				// Whitespace
 				$p += strspn( $expr, EXPR_WHITE_CLASS, $p );
 				continue;
+				// @phan-suppress-next-line PhanParamSuspiciousOrder false positive
 			} elseif ( false !== strpos( EXPR_NUMBER_CLASS, $char ) ) {
 				// Number
 				if ( $expecting !== 'expression' ) {
diff --git a/includes/ExtParserFunctions.php b/includes/ExtParserFunctions.php
index 37f60171..8b525f63 100644
--- a/includes/ExtParserFunctions.php
+++ b/includes/ExtParserFunctions.php
@@ -85,8 +85,8 @@ class ExtParserFunctions {
 	 */
 	public static function ifexprObj( $parser, $frame, $args ) {
 		$expr = isset( $args[0] ) ? trim( $frame->expand( $args[0] ) ) : '';
-		$then = isset( $args[1] ) ? $args[1] : '';
-		$else = isset( $args[2] ) ? $args[2] : '';
+		$then = $args[1] ?? '';
+		$else = $args[2] ?? '';
 		$result = self::ifexpr( $parser, $expr, $then, $else );
 		if ( is_object( $result ) ) {
 			$result = trim( $frame->expand( $result ) );
@@ -156,8 +156,8 @@ class ExtParserFunctions {
 	 */
 	public static function iferrorObj( $parser, $frame, $args ) {
 		$test = isset( $args[0] ) ? trim( $frame->expand( $args[0] ) ) : '';
-		$then = isset( $args[1] ) ? $args[1] : false;
-		$else = isset( $args[2] ) ? $args[2] : false;
+		$then = $args[1] ?? false;
+		$else = $args[2] ?? false;
 		$result = self::iferror( $parser, $test, $then, $else );
 		if ( $result === false ) {
 			return '';
@@ -379,8 +379,8 @@ class ExtParserFunctions {
 	 */
 	public static function ifexistObj( $parser, $frame, $args ) {
 		$title = isset( $args[0] ) ? trim( $frame->expand( $args[0] ) ) : '';
-		$then = isset( $args[1] ) ? $args[1] : null;
-		$else = isset( $args[2] ) ? $args[2] : null;
+		$then = $args[1] ?? null;
+		$else = $args[2] ?? null;
 
 		$result = self::ifexistCommon( $parser, $frame, $title, $then, $else );
 		if ( $result === null ) {