Multi_query

In this article, we will focus on the mysqli_multi_query() function in PHP, which is used to execute multiple queries in a single call. We will provide you with an overview of the function, how it works, and examples of its use.

Introduction to the mysqli_multi_query() function

The mysqli_multi_query() function is a built-in function in PHP that is used to execute multiple queries in a single call. This function is useful when you need to execute a series of queries that are dependent on each other or when you need to execute a batch of queries at once.

How to use the mysqli_multi_query() function

Using the mysqli_multi_query() function is very simple. You just need to call the function on a valid MySQLi connection with a string of multiple queries separated by semicolons. Here is an example:

<?php
$mysqli = mysqli_connect("localhost", "username", "password", "database");

$query = "INSERT INTO table1 VALUES ('value1', 'value2', 'value3');";
$query .= "UPDATE table2 SET column1 = 'newvalue' WHERE id = 1;";

mysqli_multi_query($mysqli, $query);

mysqli_close($mysqli);
?>

In this example, we call the mysqli_connect() function to connect to a MySQL database with a username and password. We then create a string containing two queries separated by semicolons. We then call the mysqli_multi_query() function on the MySQLi connection to execute both queries at once. We then close the MySQLi connection using the mysqli_close() function.

Conclusion

In conclusion, the mysqli_multi_query() function is a useful tool for executing multiple queries in a single call. By understanding how to use the function, you can take advantage of this feature to create powerful and efficient MySQLi queries.