通过触摸功能设置文件日期修改

Question

我已阅读http://php.net/manual/en/function.touch.php有关如何设置文件修改日期的信息，但我的日期格式是：

$date = "5/11/2017 08:32 PM EST";

如何用该日期触摸文件？

$filename = "text.txt";

if (!touch($filename, $date)) {
    echo 'Whoops, something went wrong...';
} else {
    echo 'Touched file with success';
}

Answer 1

使用strtotime()将其转换为正确的格式：

$filename = "text.txt";

if (!touch($filename, strtotime($date))) {
echo 'Whoops, something went wrong...';
} else {
echo 'Touched file with success';
}

如果您100％确定格式，请使用DateTime::createFromFormat()以确保100％准确度（无论区域设置或区域）：

$datetime = DateTime::createFromFormat("n/d/Y h:i A T", $date);

if (!touch($filename, $datetime->getTimestamp())) {
echo 'Whoops, something went wrong...';
} else {
echo 'Touched file with success';
}

您可以使用strtotime()或DateTime::createFromFormat()看到here结果相同。