经测试代码如下:
/**
* 以一种可读性比较好的方式显示已经过去多长时间
*
* @param
* @arrange (编程之家) jb51.cc
**/
function time_is_older_than($t,$check_time){
$t = strtolower($t);
$time_type = substr(preg_replace('/[^a-z]/','',$t),1);
$val = intval(preg_replace('/[^0-9]/',$t));
$ts = 0;
// (s)econds,(m)inutes,(d)ays,(y)ears
if ($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',$time);
print - is older than 30 minutes<br/>\n;
}
else {
print 'The given timestamp: ' . date('l dS \of F Y h:i:s A',$time);
print - is NOT older than 30 minutes<br/>\n;
}
// short checks:
if (time_is_older_than('10s',$time)){ print Is older than 10 seconds<br/>\n; }
if (time_is_older_than('200m',$time)){ print Is older than 200 minutes<br/>\n; }
if (time_is_older_than('2h',$time)){ print Is older than 2 hours<br/>\n; }
if (time_is_older_than('4d',$time)){ print Is older than 4 days<br/>\n; }
if (time_is_older_than('1y',$time)){ print Is older than one year<br/>\n; }
/*** 代码来自编程之家 jb51.cc(jb51.cc) ***/
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