Merge pull request #2681 from dizews/buildin-phpserver-fix

fix bug of php buildin webserver https://bugs.php.net/bug.php?id=66606

framework/CHANGELOG.md

@@ -53,6 +53,7 @@ Yii Framework 2 Change Log
 - Bug #2607: `yii message` tool wasn't updating `message` table (mitalcoi)
 - Bug #2624: Html::textArea() should respect "name" option. (qiangxue)
 - Bug #2653: Fixed the bug that unsetting an unpopulated AR relation would trigger exception (qiangxue)
+- Bug #2681: Fixed the bug of php build-in server https://bugs.php.net/bug.php?id=66606 (dizews)
 - Bug: Fixed `Call to a member function registerAssetFiles() on a non-object` in case of wrong `sourcePath` for an asset bundle (samdark)
 - Bug: Fixed incorrect event name for `yii\jui\Spinner` (samdark)
 - Bug: Json::encode() did not handle objects that implement JsonSerializable interface correctly (cebe)

framework/web/Request.php

@@ -956,7 +956,12 @@ class Request extends \yii\base\Request
 	 */
 	public function getContentType()
 	{
-		return isset($_SERVER["CONTENT_TYPE"]) ? $_SERVER["CONTENT_TYPE"] : null;
+		if (isset($_SERVER["CONTENT_TYPE"])) {
+			return $_SERVER["CONTENT_TYPE"];
+		} elseif (isset($_SERVER["HTTP_CONTENT_TYPE"])) { //fix bug https://bugs.php.net/bug.php?id=66606
+			return $_SERVER["HTTP_CONTENT_TYPE"];
+		}
+		return null;
 	}
 
 	private $_languages;