what is security? what is access control? comphrensive interview questions and answer for security.

array(3) { [0]=> object(stdClass)#1956 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "kmnGIT5uJBQ" ["related_video_title"]=> string(266) "सुपा देउराली माता ले सबैको मनोकामना पुरा गर्नु को साथै आशिर्बाद प्रदान गरुन❤️ ॐ जय सुपा देउराली माता" ["posted_time"]=> string(27) "7 месяцев назад" ["channelName"]=> string(15) "Madan Bhattarai" } [1]=> object(stdClass)#1929 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "2JSbWzLZRbk" ["related_video_title"]=> string(33) "#viralvideo #army #spiderman 😆" ["posted_time"]=> string(27) "6 месяцев назад" ["channelName"]=> string(15) "Madan Bhattarai" } [2]=> object(stdClass)#1954 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "x9xe6DgCM3U" ["related_video_title"]=> string(11) "#viralvideo" ["posted_time"]=> string(25) "4 месяца назад" ["channelName"]=> string(15) "Madan Bhattarai" } }