数据库连接出错，错误信息：php_network_getaddresses: getaddrinfo failed: Name or service not known
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Fatal error: Uncaught Error: Call to a member function fetch_array() on null in /var/www/html/jbuy_com_au/public_html/comments/show.php:69
Stack trace:
#0 {main}
thrown in /var/www/html/jbuy_com_au/public_html/comments/show.php on line 69