// Redis
$redis = new Redis();
$redis->connect('127.0.0.1', 6379);
<br />
<b>Fatal error</b>:  Uncaught mysqli_sql_exception: MySQL server has gone away in /var/www/vhosts/xdeal.gr/httpdocs/search.php:55
Stack trace:
#0 /var/www/vhosts/xdeal.gr/httpdocs/search.php(55): mysqli_query()
#1 {main}
  thrown in <b>/var/www/vhosts/xdeal.gr/httpdocs/search.php</b> on line <b>55</b><br />