Next_result

In this article, we will focus on the mysqli_next_result() function in PHP, which is used to prepare the next query result for mysqli_multi_query().

Introduction to the mysqli_next_result() function

The mysqli_next_result() function is a built-in function in PHP that is used to prepare the next query result for mysqli_multi_query(). This function is used when multiple queries are executed using mysqli_multi_query(), and you need to move to the next result set.

How to use the mysqli_next_result() function

Using the mysqli_next_result() function is very simple. After executing multiple queries using mysqli_multi_query(), you can use this function to move to the next result set. Here is an example:

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

$query = "SELECT * FROM table1; SELECT * FROM table2; SELECT * FROM table3;";

mysqli_multi_query($mysqli, $query);

/* process first result set */
$result1 = mysqli_store_result($mysqli);
// process result set

/* move to next result set */
mysqli_next_result($mysqli);

/* process second result set */
$result2 = mysqli_store_result($mysqli);
// process result set

/* move to next result set */
mysqli_next_result($mysqli);

/* process third result set */
$result3 = mysqli_store_result($mysqli);
// process result set

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 three queries separated by semicolons. We then call the mysqli_multi_query() function on the MySQLi connection to execute all three queries at once. After executing the first query, we use mysqli_next_result() function to move to the next result set, which is the result set for the second query. We then use the mysqli_store_result() function to process the result set. We repeat this process for the third query result set. Finally, we close the MySQLi connection using the mysqli_close() function.

Conclusion

In conclusion, the mysqli_next_result() function is a useful tool for preparing the next query result set for mysqli_multi_query(). By understanding how to use the function, you can efficiently execute and process multiple queries with PHP's MySQLi extension.