本文实例讲述了PHP时间类。分享给大家供大家参考,具体如下:
<?phpheader("Content-type:text/html;Charset=utf-8");class time{ private $year;//年 private $month;//月 private $day;//天 private $hour;//小时 private $minute;//分钟 private $second;//秒 private $microtime;//毫秒 private $weekday;//星期 private $longDate;//完整的时间格式 private $diffTime;//两个时间的差值 //返回年份 time:时间格式为时间戳2013-3-27 function getyear($time="",$type=""){ if($time==""){$time=time(); } if($type==1){return $this->year=date("y",$time); //返回两位的年份 13 }else{return $this->year=date("Y",$time); //返回四位的年份 2013 } } //返回当前时间的月份 time:时间格式为时间戳 2013-3-27 function getmonth($time="",$type=""){ if($time==""){$time=time(); } switch($type){case 1:$this->month=date("n",$time);//返回格式 3 break;case 2:$this->month=date("m",$time);//返回格式 03 break;case 3:$this->month=date("M",$time);//返回格式 Mar break;case 4:$this->month=date("F",$time);//返回格式 March break;default:$this->month=date("n",$time); } return $this->month;} //返回当前时间的天数 time:时间格式为时间戳 2013-3-4function getday($time="",$type=""){ if($time==""){$time=time(); } if($type==1){$this->day=date("d",$time);//返回格式 04 }else{$this->day=date("j",$time);//返回格式 4 } return $this->day; } //返回当前时间的小时2010-11-10 1:19:21 20:19:21function gethour($time="",$type=""){ if($time==""){$time=time(); }switch($type){case 1:$this->hour=date("H",$time);//格式: 1 20 break;case 2:$this->hour=date("h",$time);//格式01 08 break;case 3:$this->hour=date("G",$time);//格式1 20 break;case 4:$this->hour=date("g",$time);//格式1 8 break; default :$this->hour=date("H",$time); } return $this->hour; } //返回当前时间的分钟数 1:9:18 function getminute($time="",$type=""){ if($time==""){$time=time(); } $this->minute=date("i",$time); //格式09 return $this->minute; } //返回当前时间的秒数20:19:01 function getsecond($time="",$type=""){ if($time==""){$time=time(); } $this->second=date("s",$time); //格式01 return $this->second; } //返回当前时间的星期数function getweekday($time="",$type=""){ if($time==""){$time=time();} if($type==1){$this->weekday=date("D",$time);//格式Sun }else if($type==2){$this->weekday=date("l",$time); //格式 Sunday }else{$this->weekday=date("w",$time);//格式 数字表示 0--6 } return $this->weekday; } //比较两个时间的大小 格式 2013-3-4 8:4:3 function compare($time1,$time2){ $time1=strtotime($time1); $time2=strtotime($time2); if($time1>=$time2){//第一个时间大于等于第二个时间 返回1 否则返回0return 1; }else{return -1; } } //比较两个时间的差值 function diffdate($time1="",$time2=""){ //echo $time1."------".$time2."<br>"; if($time1==""){$time1=date("Y-m-d H:i:s");} if($time2==""){ $time2=date("Y-m-d H:i:s");} $date1=strtotime($time1); $date2=strtotime($time2); if($date1>$date2){$diff=$date1-$date2;}else{$diff=$date2-$date1; } if($diff>=0){$day=floor($diff/86400);$hour=floor(($diff%86400)/3600);$minute=floor(($diff%3600)/60);$second=floor(($diff%60));$this->diffTime="相差".$day."天".$hour."小时".$minute."分钟".$second."秒";} return $this->diffTime; } //返回 X年X月X日 function buildDate($time="",$type=""){ if($type==1){ $this->longDate = $this->getyear($time) . "年" . $this->getmonth($time) . "月" . $this->getday($time) . "日"; }else{$this->longDate = $this->getyear($time) . "年" . $this->getmonth($time) . "月" . $this->getday($time) . "日".$this->gethour($time).":".$this->getminute($time).":".$this->getsecond($time); } return $this->longDate; }}?>希望本文所述对大家PHP程序设计有所帮助。