在大量寻找解决方案之后，我检查了他们的github问题页面，并在已解决的问题"部分中找到了 ParsePush.php 中输入了错误. 因此，如果有人遇到此问题，请更新您的解析PHP SDK .

After searching a lot for a solution, I checked their github issues page and in the 'closed issues' section I found out a similar issue. The solution was to just update the SDK. Because they had made a typo in the ParsePush.php. So, if anyone is having this issue, please update your Parse PHP SDK.