Add logo and text on video using ffmpeg and php command

<?php exec('ffmpeg -i sample.mp4 -i logo.png -filter_complex  "overlay=10:10",drawbox="y=ih-h-20:color=black@0.4:width=iw:height=48:t=fill",drawtext="fontfile=OpenSans-Bold.ttf: text=Gurpreet | 9876534566: fontcolor=white: fontsize=30: x=(w-text_w)/2: y=(h-text_h)-30" -codec:a copy output_video.mp4
') ?>