致命错误：调用未定义的函数mysqli_master_query（）

Question

查询数据库时遇到问题。我收到以下错误：

Fatal error: Call to undefined function mysqli_master_query() in /home/**/**/**/edit/add.php on line 4

这是我的PHP代码..

<?php
    $db = mysqli_connect("localhost","XXX","XXX","XXX") or die(mysql_error());

    if(mysqli_master_query($db, "UPDATE users SET order =1 WHERE id =1")){
        echo "Y";
    }else{
        echo "N";
    }
?>

Answer 1

mysqli_master_query()

 This function has been DEPRECATED and REMOVED as of PHP 5.3.0.

Answer 2

您使用的是哪个版本？

截至PHP 5.3.0，

mysqli_master_query（）函数已被弃用和删除。

参考：http://php.net/manual/en/function.mysqli-master-query.php