你不应该使用 mysqli::multi_query() 无法执行sql，因为此函数不支持参数绑定。必须使用准备好的语句分别执行这两个查询。如果不打算将任何数据绑定到sql，那么可以将其减少一行并使用 mysqli::query() 相反。
如果两个查询相互依赖，则可以将它们 Package 到事务中（假设表引擎支持事务）。

<?php

mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
$mysqli = new mysqli("a", "a", "a", "a");
$mysqli->set_charset('utf8mb4'); // always set the charset

// start transaction
$mysqli->begin_transaction();

$sql = "UPDATE laporan_gini SET id_provinsi='1' WHERE nama_item_vertical_variabel= 'INDONESIA'";
$stmt = $mysqli->prepare($sql);
$stmt->execute();

$sql = "UPDATE laporan_gini SET id_provinsi='61' WHERE nama_item_vertical_variabel= 'KALIMANTAN BARAT'";
$stmt = $mysqli->prepare($sql);
$stmt->execute();

// commit data and end transaction
$mysqli->commit();

最好的方法是使用sql触发器或存储过程：
https://dev.mysql.com/doc/refman/8.0/en/trigger-syntax.html
https://dev.mysql.com/doc/connector-net/en/connector-net-tutorials-stored-procedures.html
另一方面，您可以在代码中运行它：

<?php
$mysqli = new mysqli("example.com", "user", "password", "database");
if ($mysqli->connect_errno) {
    echo "Failed to connect to MySQL: (" . $mysqli->connect_errno . ") " . $mysqli->connect_error;
}

if (!$mysqli->query("DROP TABLE IF EXISTS test") || !$mysqli->query("CREATE TABLE test(id INT)")) {
    echo "Table creation failed: (" . $mysqli->errno . ") " . $mysqli->error;
}

$sql = "SELECT COUNT(*) AS _num FROM test; ";
$sql.= "INSERT INTO test(id) VALUES (1); ";
$sql.= "SELECT COUNT(*) AS _num FROM test; ";

if (!$mysqli->multi_query($sql)) {
    echo "Multi query failed: (" . $mysqli->errno . ") " . $mysqli->error;
}

do {
    if ($res = $mysqli->store_result()) {
        var_dump($res->fetch_all(MYSQLI_ASSOC));
        $res->free();
    }
} while ($mysqli->more_results() && $mysqli->next_result());
?>

您可以在一个调用中发送多个sql查询，并用分号分隔

$sql = "UPDATE laporan_gini SET id_provinsi='1' WHERE nama_item_vertical_variabel= 'INDONESIA';";
$sql.= "UPDATE laporan_gini SET id_provinsi='61' WHERE nama_item_vertical_variabel= 'KALIMANTAN BARAT';";

if (!$mysqli->multi_query($sql)) {
    echo "Multi query failed: (" . $mysqli->errno . ") " . $mysqli->error;
}