相关疑难解决方法(0)

我正在尝试编写一个函数,它将使用mysqli检查数据库中的单个值,而不必将其放在数组中.除了我在这里做的事情,我还能做什么？

function getval($query){
    $mysqli = new mysqli();
    $mysqli->connect(HOST, USER, PASS, DB);
    $result = $mysqli->query($query);
    $value = $mysqli->fetch_array;
    $mysqli->close();
    return $value;
}

我想第一次使用mySQLi.我已经在循环的情况下完成了它.循环结果显示但我在尝试显示单个记录时卡住了.这是循环代码正在工作.

<?php
// Connect To DB
$hostname="localhost";
$database="mydbname";
$username="root";
$password="";

@$conn = mysqli_connect($hostname, $username, $password)
        or die("Could not connect to server " . mysql_error()); 
    mysqli_select_db($conn, $database)
        or die("Error: Could not connect to the database: " . mysql_error());

    /*Check for Connection*/
    if(mysqli_connect_errno()){
        // Display Error message if fails
        echo 'Error, could not connect to the database please try again again.';
    exit();
    }
?>

<?php
$query = "SELECT ssfullname, ssemail FROM userss ORDER BY ssid";
$result = mysqli_query($conn, $query);
@$num_results = mysqli_num_rows($result); …