symfony
diff --git a/‎src/Symfony/Component/PropertyAccess/PropertyAccessor.php
Lines changed: 4 additions & 3 deletions b/‎src/Symfony/Component/PropertyAccess/PropertyAccessor.php
Lines changed: 4 additions & 3 deletions
diff --git a/‎src/Symfony/Component/PropertyAccess/Tests/PropertyAccessorTest.php
Lines changed: 9 additions & 0 deletions b/‎src/Symfony/Component/PropertyAccess/Tests/PropertyAccessorTest.php
Lines changed: 9 additions & 0 deletions
@@ -508,7 +508,7 @@ private function readProperty($zval, $property)
      */
     private function getReadAccessInfo($class, $property)
     {
-        $key = (false !== strpos($class, '@') ? rawurlencode($class) : $class).'..'.$property;
+        $key = false !== strpbrk($key = $class.'..'.$property, '{}()/@:') ? rawurlencode($key) : $key;
 
         if (isset($this->readPropertyCache[$key])) {
             return $this->readPropertyCache[$key];
@@ -687,7 +687,7 @@ private function writeCollection($zval, $property, $collection, $addMethod, $rem
      */
     private function getWriteAccessInfo($class, $property, $value)
     {
-        $key = (false !== strpos($class, '@') ? rawurlencode($class) : $class).'..'.$property;
+        $key = false !== strpbrk($key = $class.'..'.$property, '{}()/@:') ? rawurlencode($key) : $key;
 
         if (isset($this->writePropertyCache[$key])) {
             return $this->writePropertyCache[$key];
@@ -868,7 +868,8 @@ private function getPropertyPath($propertyPath)
         }
 
         if ($this->cacheItemPool) {
-            $item = $this->cacheItemPool->getItem(self::CACHE_PREFIX_PROPERTY_PATH.$propertyPath);
+            $key = false !== strpbrk($propertyPath, '{}()/@:') ? rawurlencode($propertyPath) : $propertyPath;
+            $item = $this->cacheItemPool->getItem(self::CACHE_PREFIX_PROPERTY_PATH.str_replace('\\', '.', $key));
             if ($item->isHit()) {
                 return $this->propertyPathCache[$propertyPath] = $item->get();
             }
 
@@ -582,6 +582,15 @@ public function testCacheReadAccess()
         $this->assertEquals('baz', $propertyAccessor->getValue($obj, 'publicGetSetter'));
     }
 
+    public function testAttributeWithSpecialChars()
+    {
+        $obj = new \stdClass();
+        $obj->{'@foo'} = 'bar';
+
+        $propertyAccessor = new PropertyAccessor(false, false, new ArrayAdapter());
+        $this->assertSame('bar', $propertyAccessor->getValue($obj, '@foo'));
+    }
+
     /**
      * @expectedException \Symfony\Component\PropertyAccess\Exception\InvalidArgumentException
      * @expectedExceptionMessage Expected argument of type "Countable", "string" given
Original file line number	Diff line number	Diff line change
`@@ -508,7 +508,7 @@ private function readProperty($zval, $property)`
`508`	`508`	`*/`
`509`	`509`	`private function getReadAccessInfo($class, $property)`
`510`	`510`	`{`
`511`		`- $key = (false !== strpos($class, '@') ? rawurlencode($class) : $class).'..'.$property;`
	`511`	`+ $key = false !== strpbrk($key = $class.'..'.$property, '{}()/@:') ? rawurlencode($key) : $key;`
`512`	`512`
`513`	`513`	`if (isset($this->readPropertyCache[$key])) {`
`514`	`514`	`return $this->readPropertyCache[$key];`
`@@ -687,7 +687,7 @@ private function writeCollection($zval, $property, $collection, $addMethod, $rem`
`687`	`687`	`*/`
`688`	`688`	`private function getWriteAccessInfo($class, $property, $value)`
`689`	`689`	`{`
`690`		`- $key = (false !== strpos($class, '@') ? rawurlencode($class) : $class).'..'.$property;`
	`690`	`+ $key = false !== strpbrk($key = $class.'..'.$property, '{}()/@:') ? rawurlencode($key) : $key;`
`691`	`691`
`692`	`692`	`if (isset($this->writePropertyCache[$key])) {`
`693`	`693`	`return $this->writePropertyCache[$key];`
`@@ -868,7 +868,8 @@ private function getPropertyPath($propertyPath)`
`868`	`868`	`}`
`869`	`869`
`870`	`870`	`if ($this->cacheItemPool) {`
`871`		`- $item = $this->cacheItemPool->getItem(self::CACHE_PREFIX_PROPERTY_PATH.$propertyPath);`
	`871`	`+ $key = false !== strpbrk($propertyPath, '{}()/@:') ? rawurlencode($propertyPath) : $propertyPath;`
	`872`	`+ $item = $this->cacheItemPool->getItem(self::CACHE_PREFIX_PROPERTY_PATH.str_replace('\\', '.', $key));`
`872`	`873`	`if ($item->isHit()) {`
`873`	`874`	`return $this->propertyPathCache[$propertyPath] = $item->get();`
`874`	`875`	`}`