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php cannot select the database
We may report the following error when selecting the database. How to solve it? Get up and study.
Warning: mysqli_select_db() expects exactly 2 parameters, 1 given in D:\wamp\www\test\connect.php on line 8
When PHP connects to the database:
There is no problem connecting to the database with mysqli_connect, but there is always an error when using mysqli_select_db!
After careful observation of mysql_select_db and mysqli_select_db, I found that
●The incoming parameters of mysql_select_db are (databaseName, query);
●The incoming parameters of mysqli_select_db are (query, databaseName );
The order of the incoming parameters of the two connection methods is not the same, so the selection fails.
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