I've tried to download audio + video using -f but still seperated

[jeraldpunx]

<?php

        $url = "https://www.youtube.com/watch?v=2MRdtXWcgIw";
        $cmd = 'youtube-dl -g -f bestvideo+bestaudio/best ' . escapeshellarg($url);
        exec($cmd, $outputsd);
        print_r($outputsd);

This is my code, it shows separated link for audio and video instead of combined with different quality.

[dstftw]

Bother to read FAQ.

[jeraldpunx]

can I used the ffmpeg.exe and youtube-dl.exe in same folder on project? without using the PATH environment ?