Executing multiple SQL queries in one statement with PHP

In PHP, you can execute multiple SQL queries in one statement by using the mysqli_multi_query() function. This function allows you to pass in a string containing multiple SQL queries separated by a semicolon. Each query will be executed in the order they are written.

Here is an example of how to use mysqli_multi_query():

<?php

$sql = "SELECT * FROM table1; SELECT * FROM table2;";

if (mysqli_multi_query($conn, $sql)) {
    do {
        /* store first result set */
        if ($result = mysqli_store_result($conn)) {
            while ($row = mysqli_fetch_row($result)) {
                printf("%s\n", $row[0]);
            }
            mysqli_free_result($conn);
        }
        /* print divider */
        if (mysqli_more_results($conn)) {
            printf("-----------------\n");
        }
    } while (mysqli_next_result($conn));
}

It is important to note that not all SQL servers support multiple statements in one query, so you should check the documentation for the specific database you are using to see if this is a supported feature.