如何在PHP中流式传输YouTube视频？

Question

There is site which gets direct link to youtube server as for example if we visit the link

http://vimow.com/watch?v=TLM6e_slo7Q-Play-Xbox-in-a-WEB-BROWSER?---Inside-Gaming-Daily

now if we view the page source will notice that there is the following link in video src

https://r5---sn-npo7enel.c.docs.google.com/videoplayback?mt=1410551258&expire=1410572981&ratebypass=yes&key=yt5&signature=C3FB417A7FB4C61600553152F9FFB57E473C762B.8F451B015AF741FFE45777DB5CEF424E452D433F&fexp=914095%2C927622%2C931983%2C932404%2C934030%2C946023%2C947209%2C948205%2C953600%2C953801%2C955400&upn=nnZKYWtq7gU&pfa=20s&initcwndbps=12869000&id=o-AMzBGT7otDdEr3LZCZRZA1hv1-ovI_PTghQHLJWtmAGq&ipbits=0&source=youtube&ms=au&pm_type=static&pbr=yes&mm=31&ip=128.199.133.159&sver=3&mv=m&sparams=id%2Cinitcwndbps%2Cip%2Cipbits%2Citag%2Cmm%2Cms%2Cmv%2Cpbr%2Cpfa%2Cpm_type%2Cratebypass%2Csource%2Cupn%2Cexpire&itag=18

my question is that how they are getting that link from youtube ?

i searched youtube api but did not find any solution.

Answer 1

got o youtube choose your video and click share after that click include (or something like that i can see it in french soo..) it will genereate a link like this one embed it in your page :

<iframe width="560" height="315" src="//www.youtube.com/embed/YoB8t0B4jx4" frameborder="0" allowfullscreen></iframe>

or you can just make it (the iframe adding the url of the video look at src of the iframe abouve