symfony
diff --git a/‎Tests/Adapter/RedisAdapterTest.php
Lines changed: 1 addition & 0 deletions b/‎Tests/Adapter/RedisAdapterTest.php
Lines changed: 1 addition & 0 deletions
diff --git a/‎Traits/RedisTrait.php
Lines changed: 7 additions & 3 deletions b/‎Traits/RedisTrait.php
Lines changed: 7 additions & 3 deletions
@@ -112,6 +112,7 @@ public function testInvalidCreateConnection(string $dsn)
     public function provideInvalidCreateConnection(): array
     {
         return [
+            ['redis://localhost/foo'],
             ['foo://localhost'],
             ['redis://'],
         ];
 
@@ -147,9 +147,13 @@ public static function createConnection(string $dsn, array $options = [])
         }
 
         if (isset($params['host']) || isset($params['path'])) {
-            if (!isset($params['dbindex']) && isset($params['path']) && preg_match('#/(\d+)$#', $params['path'], $m)) {
-                $params['dbindex'] = $m[1];
-                $params['path'] = substr($params['path'], 0, -\strlen($m[0]));
+            if (!isset($params['dbindex']) && isset($params['path'])) {
+                if (preg_match('#/(\d+)$#', $params['path'], $m)) {
+                    $params['dbindex'] = $m[1];
+                    $params['path'] = substr($params['path'], 0, -\strlen($m[0]));
+                } else {
+                    throw new InvalidArgumentException(sprintf('Invalid Redis DSN: "%s", the "dbindex" parameter must be a number.', $dsn));
+                }
             }
 
             if (isset($params['host'])) {
Original file line number	Diff line number	Diff line change
`@@ -112,6 +112,7 @@ public function testInvalidCreateConnection(string $dsn)`
`112`	`112`	`public function provideInvalidCreateConnection(): array`
`113`	`113`	`{`
`114`	`114`	`return [`
	`115`	`+ ['redis://localhost/foo'],`
`115`	`116`	`['foo://localhost'],`
`116`	`117`	`['redis://'],`
`117`	`118`	`];`