Question

我有一张订阅者表。每个订户行具有字段w1，w2，w3，w4，w5。

row1    email | w1 | w2 | w3 | w4 | w5
row2    email | w1 | w2 | w3 | w4 | w5
row3    email | w1 | w2 | w3 | w4 | w5

'w'字段可以有0,1或2

我需要运行查询检查'w'字段，如果该字段有2重新运行查询并检查下一个'w'

示例：

run the function for w1;
if w1 == 2
run the function for w2;
if w2 == 2
run the function for w3;
if w3 == 2
run the function for w4;
if w4 == 0 or == 1
set variable to true
OR if w4 == 2
run the function for w5

这是我目前的职能：

function checkForComplete($nextwidgetNumber, $email) {

global $mysqli, $response;

$complete = false;

$nextwidget = 'w'.$nextwidgetNumber;

if ($stmt = $mysqli->prepare("SELECT ".$nextwidget." FROM subscribe WHERE emailaddr=? AND trash != 1 AND archive != 1")) {
    $stmt->bind_param('s', $email);

    $stmt->execute();

    /* bind result variables */
    $stmt->bind_result($widget);

    $stmt->store_result();

    $stmt->fetch();

    // if($stmt->num_rows > 0)
    if($widget == '2')
        $complete = true;

    $response['status'] = "successful completed widget";
    $response['complete'] = $complete;

} else {
    $response['status'] = "query failed";
}

    $stmt->close();

    return $response;

}

这是函数调用：

checkForComplete($nextwidgetNumber,$email);

Answer 1

select @variable = 1
from your_table
where w2 = 2
and w3 = 2
and w4 in (0,1)

多次运行MySql查询，直到在5个字段之一中找到特定值

1 个答案: