PHP：一个小时前，x小时前

Question

所以我有这个功能来显示从插入的Unix格式timestamp（time（））生成的时间：

function get_time($timestamp) {
    $time = date('G:i', $timestamp);
    echo " at: ".$time;
    return $time;
}

我想扩展此功能，如果它在24小时内，它应该计算并回显“ x小时前”，如果它是昨天或更晚，它应该像现在一样回显（echo“ at ：“。$ time;）..

如何才能做到这一点？

Answer 1

少于24小时前是3600 * 24，即

$time_now-3600*24

然后

if($timestamp > (time() - (3600*24))) {

// Calculate time difference

$diff = time() - $timestamp;

$hours = $diff / 3600;

echo $hours . " hours ago";

} else {

echo "at" . date("x-y-z", $timestamp");

}

Answer 2

/*
* @author Alexander.Plutov
* @param int $timestamp
* @param float $hours_ago
* @return date
*/
function get_time($timestamp, $hours_ago) {
    $seconds_ago = $hours_ago * 60 * 60 * 24;
    $new_timestamp = $timestamp - $seconds_ago;
    $time = date('G:i', $new_timestamp);
    echo " at: ".$time;
    return $time;
}