How to edit data in multiple tables in php

1. First, establish a link between PHP and MySQL through PDO

Important code:

$conn = new PDO("mysql:host=$servername;dbname=$dbname", $username, $password);

2. Test whether the PHP connection to the database is successful. If successful, the screen will return: Connection successful

3. Prepare two pieces of SQL data and insert them into two data tables respectively

Important code examples:

$sql_books=
$sql_author=

4. Perform multi-table insert editing in PHP. If the insertion is successful, OK will be returned twice

5. Finally, in the database, use the SELECT statement to verify whether multiple table editing and insertion are successful at the same time

Recommended tutorial: PHP video tutorial

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