本文实例讲述了php计算给定时间之前的函数用法。分享给大家供大家参考。具体如下:
这里给定一个时间,计算这个时间在多久前,比如:2天前,1年前
<?php function prettyDate($date){ $time = strtotime($date); $now = time(); $ago = $now - $time; if($ago < 60){ $when = round($ago); $s = ($when == 1)?\"second\":\"seconds\"; return \"$when $s ago\"; }elseif($ago < 3600){ $when = round($ago / 60); $m = ($when == 1)?\"minute\":\"minutes\"; return \"$when $m ago\"; }elseif($ago >= 3600 && $ago < 86400){ $when = round($ago / 60 / 60); $h = ($when == 1)?\"hour\":\"hours\"; return \"$when $h ago\"; }elseif($ago >= 86400 && $ago < 2629743.83){ $when = round($ago / 60 / 60 / 24); $d = ($when == 1)?\"day\":\"days\"; return \"$when $d ago\"; }elseif($ago >= 2629743.83 && $ago < 31556926){ $when = round($ago / 60 / 60 / 24 / 30.4375); $m = ($when == 1)?\"month\":\"months\"; return \"$when $m ago\"; }else{ $when = round($ago / 60 / 60 / 24 / 365); $y = ($when == 1)?\"year\":\"years\"; return \"$when $y ago\"; } } echo prettyDate(\"2012-07-22 12:23:45\").\"<br />\"; echo prettyDate(\"2010-11-12 22:25:45\").\"<br />\"; echo prettyDate(\"2012-01-01 01:00:00\").\"<br />\"; echo prettyDate(\"2001-05-30 00:00:00\").\"<br />\";
希望本文所述对大家的php程序设计有所帮助。
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