PHP Age calculation gets two timestamp difference of age Month Day display

Because you need to display the age of the object, on the Internet to find a few look not too ideal, I wrote a, get two time stamp of the age of the function, the result is x years x months x days, the month is zero, does not show the date, the principle is: Month day subtraction, the number is not enough, by the year and month of the carry the number, finally get the time value.

<? php/* * ============================== *  This method is provided by  mantye     *  http://my.oschina.net/u/223350  *  @date  2014-07-22 * =========================== === *  @description      get two time stamp age  *  @before            small timestamp  *  @after             larger timestamp  *  @return  str      return age difference y years m months D days **/function  Datediffage ($before,  $after)  { if  ($before > $after)  {   $b  =  GETDATE ($after);   $a  = getdate ($before); } else {   $b  =  getdate ($before);   $a  = getdate ($after); }  $n  = array (1=>31,2 =&GT;28,3=&GT;31,4=&GT;30,5=&GT;31,6=&GT;30,7=&GT;31,8=&GT;31,9=&GT;30,10=&GT;31,11=&GT;30,12=&GT;31);  $y = $m = $d =0; if  ($a[' Mday ']>= $b [' Mday '])  { //day subtraction is positive   if  ($a [' mon ']>= $b [' mon '])  {//moon phase reduced to positive      $y = $a [' Year ']-$b [' Year ']; $m = $a [' mon ']-$b [' Mon '];  }  else { //the moon phase minus negative, Borrowing years     $y = $a [' Year ']-$b [' Year ']-1; $m = $a [' mon ']-$b [' mon ']+12;  }   $d = $a [' Mday ' ]-$b [' Mday ']; } else {  //days minus negative, borrow month   if  ($a [' mon ']==1)  { //1 month , borrowing years     $y = $a [' Year ']-$b [' Year ']-1; $m = $a [' mon ']-$b [' mon ']+12; $d = $a [' mday ']-$b [' Mday ']+ $n [12];   }  else {   if  ($a [' mon ']==3) &NBSP;{&NBSP;//3 month, judging leap years get February days       $d = $a [' mday ']-$b [' Mday ']+ ($a [' Year ']%4==0?29:28);    }   else  {     $d = $a [' mday ']-$b [' Mday ']+ $n [$a [' Mon ']-1];   }    if  ($a [' mon ']>= $b [' mon ']+1)  { //borrow months, the moon phase is reduced to positive      $y = $a [' Year ']-$b [' Year ']; $m = $a [' mon ']-$b [' Mon '']-1;   }   else { //borrow month, the moon phase minus negative, borrow years      $y = $a [' Year '] -$b [' Year ']-1; $m = $a [' mon ']-$b [' Mon ']+12-1;   }  } } return  ($y ==0? ': $ Y. ' old '). ($m ==0? ': $m. ' months '). ($d ==0? ': $d. ' Day ');}? >