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php 时间转换静态方法

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Release: 2016-06-08 17:29:10
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php 时间转换静态方法

/**
  * 时间转换静态方法
  * @param string $formatTo 返回格式
  * @param mixed $source 时间源
  * @return string
  */ 
 public static function transform($formatTo = 'date',$source) {
  if (!is_numeric($source)) {
   try {
    $source = MyDate::toTimeStamp($source);
   }catch (Exception $e){
    
   }
  }
  if ($formatTo!='timestamp') {
   switch (strtolower($formatTo))
   {
    case 'chinese' : //中文格式串“YYYY年MM月DD

日 HH:MM:SS”
     $result = date("Y年m月d日 H:i:s",

$source); break ;
    case 'cdate':
     $result = date("Y年m月d日",

$source); break ;
    case 'date':
     //$result = $source;break;
     $result = date("Y-m-d", $source);

break ;
    case 'time':
     $result = date("H:i:s", $source);

break ;
    case 'standard' : //标准格式串“YYYY-MM-DD

HH:MM:SS”
     $result = date("Y-m-d H:i:s",

$source); break;
    case 'noyear' :
     $result = date("m-d",$source);break;
    default :
     $result = date($formatTo, $source);
   }
  } else {
   $result = $source;
  }
  return $result;
 }

 /**
  * 时间相减运算
  * @param string $source 原时间
  * @param string $dest 目标时间
  * @param string $unit 单位
  * @param bool $roundIt 是否将结果四舍五入
  * @return int
  */
 public static function compare($source, $dest, $unit, $roundIt =

false) {
  if ($source&&$dest)
  {
   if (is_object($source) && get_class($source)

=='MyDate') {
    $source = $source->getTimeStamp();
   }
   if (is_object($dest) && get_class($dest)=='MyDate')

{
    $dest = $dest->getTimeStamp();
   }
   if (!is_numeric($source)) {
    $source = MyDate::toTimeStamp($source);
   }
   if (!is_numeric($dest)) {
    $dest = MyDate::toTimeStamp($dest);
   }
   $result = $source - $dest ;
   if ($result!=0) {
    switch ($unit) {
     case 'yy' : $result =

$result/31536000; break; //年
     case 'mm' : $result =

$result/2592000; break; //月
     case 'dd' : $result = $result/86400; 

break; //日
     case 'h'  : $result = $result/3600; 

 break; //时
     case 'm'  : $result = $result/60; 

 break; //分
     default   : break;   

     //秒
    }
   }
   if ($roundIt) {
    $result = intval(round($result));
   }
  } else {
   $result = false ;
  }
  return $result;
 }

 

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