Fetch strings of date from a given arrays of date in laravel blade file

I want to extract dates from a a arrays of dates which i was fetching from the database .

[
    {"event_start_date":"2019-03-12"},
    {"event_start_date":"2019-07-05"},
    {"event_start_date":"2019-07-05"},
    {"event_start_date":"2019-08-01"}
] 

i want to fetch those controller datas to .blade.php file in ["2019-03-12,2019-03-12,2019-03-12,2019-03-12".split(",")]

via Chebli Mohamed