Fix PHP 7.4 compatibility (#6038)

Some recent PRs have broken PHP 7.4 compatibility due to `mixed` typing.

2 files changed, 3 insertions, 3 deletions

diff --git a/tests/app/Utils/dotpathUtilTest.php b/tests/app/Utils/dotpathUtilTest.php
index e4eab3041..eb1a1d486 100644
--- a/tests/app/Utils/dotpathUtilTest.php
+++ b/tests/app/Utils/dotpathUtilTest.php
@@ -4,7 +4,7 @@ declare(strict_types=1);
 class dotpathUtilTest extends PHPUnit\Framework\TestCase {
 
 	/**
-	 * @return Traversable<array{array<string,mixed>,string,mixed}>
+	 * @return Traversable<array{array<string,mixed>,string,string}>
 	 */
 	public function provideJsonDots(): Traversable {
 		$json = <<<json
@@ -37,7 +37,7 @@ class dotpathUtilTest extends PHPUnit\Framework\TestCase {
 	 * @dataProvider provideJsonDots
 	 * @param array<string,mixed> $array
 	 */
-	public function testJsonDots(array $array, string $key, mixed $expected): void {
+	public function testJsonDots(array $array, string $key, string $expected): void {
 		$value = FreshRSS_dotpath_Util::get($array, $key);
 		self::assertEquals($expected, $value);
 	}
diff --git a/tests/bootstrap.php b/tests/bootstrap.php
index 447b038a4..f988855e6 100644
--- a/tests/bootstrap.php
+++ b/tests/bootstrap.php
@@ -1,7 +1,7 @@
 <?php
 declare(strict_types=1);
 error_reporting(E_ALL);
-ini_set('display_errors', 1);
+ini_set('display_errors', '1');
 
 const COPY_LOG_TO_SYSLOG = false;