我目前正在编写脚本。当用户发布内容且时差小于 5 分钟时,用户无法发布。如果大于 5 分钟,他可以发帖。我建议这段代码可以工作,但我得到一个mysql_fetch_array错误。我的代码有什么问题?
if ($db_found)
{
$check="SELECT * DATEDIFF(MINUTE, send_time, CURRENT_TIMESTAMP) FROM bloopp WHERE email = '$email' ORDER BY id DESC LIMIT 1";
$res = mysql_query($check);
$data = mysql_fetch_array($res, MYSQLI_NUM);
if($data[0] < 5)
{
echo "You posted not so long ago.<br/>";
}
else
{
$sql="INSERT INTO bloopp (bloopp, browser, medium, send_time, email) VALUES ('$bloopp', '$browser', 'mobile', NOW(), '$email')";
$result = mysql_query($sql);
if($result)
{
header('Location: index.php');
}
else
{
echo "Something has gone wrong. We’re sorry.";
}
}
}
else
{
echo "ERROR";
}
mysql_close();
?>
你在*
之后立即失踪了,
SELECT * DATEDIFF(MINUTE, send_time, CURRENT_TIMESTAMP)
更改为
SELECT * ,DATEDIFF(MINUTE, send_time, CURRENT_TIMESTAMP) AS `diff`
在查询中创建自定义列时最好提供别名
SELECT DATEDIFF(MINUTE, send_time, CURRENT_TIMESTAMP)
删除 *
或者保留它,但在后面添加一个逗号。