symfony
diff --git a/‎src/Symfony/Component/HttpFoundation/HeaderUtils.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/HttpFoundation/HeaderUtils.php
+5-1Lines changed: 5 additions & 1 deletion b/‎src/Symfony/Component/HttpFoundation/HeaderUtils.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/HttpFoundation/HeaderUtils.php
+5-1Lines changed: 5 additions & 1 deletion
diff --git a/‎src/Symfony/Component/HttpFoundation/Tests/AcceptHeaderTest.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/HttpFoundation/Tests/AcceptHeaderTest.php
+2Lines changed: 2 additions & 0 deletions b/‎src/Symfony/Component/HttpFoundation/Tests/AcceptHeaderTest.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/HttpFoundation/Tests/AcceptHeaderTest.php
+2Lines changed: 2 additions & 0 deletions
@@ -286,7 +286,11 @@ private static function groupParts(array $matches, string $separators, bool $fir
         }
 
         foreach ($partMatches as $matches) {
-            $parts[] = '' === $separators ? self::unquote($matches[0][0]) : self::groupParts($matches, $separators, false);
+            if ('' === $separators && '' !== $unquoted = self::unquote($matches[0][0])) {
+                $parts[] = $unquoted;
+            } elseif ($groupedParts = self::groupParts($matches, $separators, false)) {
+                $parts[] = $groupedParts;
+            }
         }
 
         return $parts;
 
@@ -41,6 +41,8 @@ public static function provideFromStringData()
     {
         return [
             ['', []],
+            [';;;', []],
+            ['0', [new AcceptHeaderItem('0')]],
             ['gzip', [new AcceptHeaderItem('gzip')]],
             ['gzip,deflate,sdch', [new AcceptHeaderItem('gzip'), new AcceptHeaderItem('deflate'), new AcceptHeaderItem('sdch')]],
             ["gzip, deflate\t,sdch", [new AcceptHeaderItem('gzip'), new AcceptHeaderItem('deflate'), new AcceptHeaderItem('sdch')]],
Original file line number	Diff line number	Diff line change
`@@ -286,7 +286,11 @@ private static function groupParts(array $matches, string $separators, bool $fir`
`286`	`286`	`}`
`287`	`287`
`288`	`288`	`foreach ($partMatches as $matches) {`
`289`		`- $parts[] = '' === $separators ? self::unquote($matches[0][0]) : self::groupParts($matches, $separators, false);`
	`289`	`+ if ('' === $separators && '' !== $unquoted = self::unquote($matches[0][0])) {`
	`290`	`+ $parts[] = $unquoted;`
	`291`	`+ } elseif ($groupedParts = self::groupParts($matches, $separators, false)) {`
	`292`	`+ $parts[] = $groupedParts;`
	`293`	`+ }`
`290`	`294`	`}`
`291`	`295`
`292`	`296`	`return $parts;`