本文实例讲述了php用已经过去多长时间的方式显示时间的方法。分享给大家供大家参考。具体如下:
这里以一种可读性比较好的方式显示已经过去多长时间,比如:距离现在10秒,距离现在1天等等。
function time_is_older_than($t, $check_time){$t = strtolower($t);$time_type = substr(preg_replace("/[^a-z]/", "", $t), 0, 1);$val = intval(preg_replace("/[^0-9]/", "", $t));$ts = 0;// (s)econds, (m)inutes, (d)ays, (y)earsif ($time_type == "s"){ $ts = $val; }else if ($time_type == "m"){ $ts = $val * 60; }else if ($time_type == "h"){ $ts = $val * 60 * 60; }else if ($time_type == "d"){ $ts = $val * 60 * 60 * 24; }else if ($time_type == "y"){ $ts = $val * 60 * 60 * 24 * 365; }else { die("Unknown time format given!"); }if ($check_time < (time()-$ts)){ return true; }return false;}//使用范例:// timestamp to test: // (could be from an database or something else)$time = 1146722922;// long if check:if (time_is_older_than("30m", $time)){print "The given timestamp: " . date("l dS of F Y h:i:s A",$time);print " - is older than 30 minutes<br/>
";}else {print "The given timestamp: " . date("l dS of F Y h:i:s A",$time);print " - is NOT older than 30 minutes<br/>
";}// short checks:if (time_is_older_than("10s", $time)){ print "Is older than 10 seconds<br/>
"; }if (time_is_older_than("200m", $time)){ print "Is older than 200 minutes<br/>
"; }if (time_is_older_than("2h", $time)){ print "Is older than 2 hours<br/>
"; }if (time_is_older_than("4d", $time)){ print "Is older than 4 days<br/>
"; }if (time_is_older_than("1y", $time)){ print "Is older than one year<br/>
"; }希望本文所述对大家的php程序设计有所帮助。