Question

不确定为什么但这个if语句不起作用。我在这做错了什么？

$timestamp = $order->datetime;
if ($timestamp >= strtotime("-1 hour")) {
    echo "PULL FROM DB!";
} else {
    echo "PULL FROM API";
}

由于

Answer 1

您正在尝试将日期字符串与时间戳进行比较。您在if语句中实际比较的内容如下：

if("2015-10-16 08:21:11" >= 1444987642){
 echo "PULL FROM DB!";
} else {
 echo "PULL FROM API";
}

这不是你想要的。在比较之前，您需要将日期字符串转换为时间戳。试试这个：

$dateString = $order->datetime;
$timestamp = strtotime($dateString);

if ($timestamp >= strtotime("-1 hour")) {
    echo "PULL FROM DB!";
} else {
    echo "PULL FROM API";
}

关键部分是您将日期字符串转换为时间戳：

$timestamp = strtotime($dateString);

Answer 2

我试过

$timestamp = strtotime("now");
if ($timestamp >= strtotime("-1 hour")) {
    echo "PULL FROM DB!";
} else {
    echo "PULL FROM API";
}

结果：从数据库中拉出来！和

$timestamp = strtotime("now");
if ($timestamp >= strtotime("1 hour")) {
    echo "PULL FROM DB!";
} else {
    echo "PULL FROM API";
}

结果：从API中提取

请检查您传递的值

$timestamp = $order->datetime;

检查Timetstamp是否超过1小时不工作？

2 个答案: