Mysqli php manual

So, if you have to switch your project to use another database, PDO makes the process easy. You only have to change the connection string and a few queries. With MySQLi, you will need to rewrite the entire code - queries included. Both support Prepared Statements. Prepared Statements protect from SQL injection, and are very important for web application security.

If you need to ensure compatibility with PHP versions prior to 5. C API. C API 8. C API 5. MySQL Server. MySQL 5. High Availability, Replication, and Scalability Solutions. MySQL Router 8. Developer Guide. MySQL Shell 8. Extending MySQL. Extending MySQL 8. Extending MySQL 5. MySQL Internals. Another great thing about MySQL is that it can be scaled down to support embedded database applications. We just launched W3Schools videos.

Get certified by completing a course today! If you want to report an error, or if you want to make a suggestion, do not hesitate to send us an e-mail:. Table myCity successfully created. Select returned 10 rows. This may or may not be obvious to people but perhaps it will help someone.

When running joins in SQL you may encounter a problem if you are trying to pull two columns with the same name. So to get what you need you can use an alias. Below I am trying to join a user id with a user role.

If I call them both as role I get the text as it is the last "role" in the query. If I use an alias then I get both as desired as shown below. When calling multiple stored procedures, you can run into the following error: "Commands out of sync; you can't run this command now". This can happen even when using the close function on the result object between calls.