How do I check if a video exists on YouTube, using PHP?

Question

How do I check if a video exists on YouTube, using PHP?

Answer 1

As commented by @dbro, the answer by Pascal MARTIN was an acceptable answer at that time. However, since the API had moved forward, fixed and improved, a new solution that works is the following. Please take note that this is based on the technique provided by @Pascal and I quote:

...if you send a request to an URL like this one

http://gdata.youtube.com/feeds/api/videos/videoID
(Replacing "videoID" by the idea of the video, of course -- "GeppLPQtihA" in your example)

You'll get some ATOM feed (**STOP HERE**)

The new URL to use and this is for V3 of the API is https://www.googleapis.com/youtube/v3/videos?id={the_id_of_the_video}&key={your_api_key}&part={parts}

WHERE

• {the_id_of_the_video} you should know what this is

• {your_api_key} is your app's key that can be found in your Developer Console

• {parts} a comma-separated list, check here for valid values

Now for the Result

If the Video Id is VALID you will get data in the items field that includes the Id of the video and the information you queried through the parts parameter.

If the Video Id is NOT VALID then you will get an empty items.

Supplying a wrong key gives you an ERROR 400 (an error object).