获得所给出时间和现在的差异–kohana3使用手册
Date::fuzzy_span()方法用一个失真的方式返回所给出时间和现在时间之间的差异
用法
Date::fuzzy_span(159084000);
将返回
several decades ago
Date::fuzzy_span(1258264800);
将返回
less than a month ago
Date::fuzzy_span(1261720800);
将返回
in less than a month
