For frontend users, could you tell me a simple php question?

For more information about the frontend, see $ MySQLConnection = mysql_connect (& quot; 192.168.22.1 & quot;, & quot; root & quot;, & quot; 123456 & quot ;); @ mysql_select_db (& q for frontend users, ask a simple php question
$ MySQLConnection = mysql_connect ("192.168.22.1", "root", "123456 ");
@ Mysql_select_db ("first ");
$ Result = mysql_query ("insert into 'first '. 'biao' ('hao') VALUES (' $ xingming ');");

Can I write this on my own page to control writing to the first database of 192.168.22.1? is it called cross-origin in php? How does 192.168.22.1 prevent such operations?


------ Solution --------------------
Php does not have cross-origin problems

By default, mysql only supports local access (127.0.0.1)
Even if 192.168.22.1 is a local IP address, it cannot be accessed without authorization.
------ Solution --------------------
Cross-origin refers to AJAX cross-origin. there is no cross-origin problem here.