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

Here is a solution that doesn't involve using youtube api, it checks if the video id exists when the url is loaded

function checkYoutubeUrlIsValid($url) {
    $buffer = file_get_contents($url);
    $matches = [];
    preg_match('#[a-zA-Z0-9_-]{11}$#', $url, $matches);

    return strpos($buffer, $matches[0]) !== false;
}

Hope that helps