update a a file php for streaming facebook video

I attached a php file which contains a video stream and download button and when i tried to get the direct video from the url like xxxx://[login to view URL]://[login to view URL]\u00253AAeGn__qehb_t7iizx-FfM7Hz9m1xhfxMQ3c2yxSqZCXQyTpwWNI05IMak6B3Dr3RlmZZNx7Ztb7Btl0fill3DbAmOUrCmbSHcEehL0YgUkSBrQ&oh=60e92253df0c453a6c373313db82df1b&oe=5AADC5FB video url may be expired my problem is because the facebook video url is too long and the download button and video src= can't get the correct facebook video it make it shorter i want to fix this simple code