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Sep 3rd, 2009
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Date pre-1970, strtotime and safestrtotime nor mktime is of any help

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Hi ,

I have a scenario where I have to fetch the dates in 1/1/1900 format and insert it to a new database as 1900-01-01. The issue i face is my date before 1970 gets reset to 01-01-1970.

I tried as strftime("%Y-%m-%d", strtotime(''1-1-1900)).
I also tried with mktime but same.

There is a safestrtotime() in the strtotime function page in php.net but that gives me for date 01-01-1900 the date as 14-12-1901.

PHP 5.1+
OS : Ubuntu

Thanks in advance for the pointers and suggestions, I remain

With regards,

Harish
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Re: Date pre-1970, strtotime and safestrtotime nor mktime is of any help

I have experimented with your problem and this appears to be a minor php bug. It seems to not handle negetive numbers properly. So to be able to do this job, you will need to make custom functions with loops that calculate the appropriate date. I will see what I can do as it won't be an easy task (due to leap years) but good luck.
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Re: Date pre-1970, strtotime and safestrtotime nor mktime is of any help

Hm, thanks for this. I had the same issue.
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Re: Date pre-1970, strtotime and safestrtotime nor mktime is of any help

There is an add in library for this function,
not sure how good it is,
http://phplens.com/phpeverywhere/node/view/16
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Re: Date pre-1970, strtotime and safestrtotime nor mktime is of any help

Function I tried other than builtin strtotime and date+ mktime is as below section but nothing gave me the exact date. Since I was getting no where, just wondered how about type cast. It seems WORKING, in the sense, I am able to put in the date as needed and precise 1900-01-01.

Input date: 1/1/1900
Output desired as inserted in database : 1900-01-01

Step #1. Exploded the input date to a array.
Step #2. Formed a needed format variable($timestamp) from the array
Step #3. Just to make sure cast as 'String' : ( String ) $timestamp

Inserted to the datebase , and the date type field holds the date correctly and the way expected.
[Note] Dont know whether above approach is correct but by posting here I believe, I could get some suggestions.

========================================================

-------------------------Function1------------------------------
PHP Syntax (Toggle Plain Text)
  1. 	function Hsafestrtotime ($s) {
  2. 	  $basetime = 0;
  3. 	  if (preg_match ("/19(\d\d)/", $s, $m) && ($m[1] < 70)) {
  4. 	    $s = preg_replace ("/19\d\d/", 1900 + $m[1]+68, $s);
  5. 	    $basetime = 0x80000000 + 1570448;
  6. 	  }
  7. 	  return $basetime + strtotime ($s);
  8. 	}
--------------------------Function2--------------------------
PHP Syntax (Toggle Plain Text)
  1. 	function safestrtotime($strInput) {
  2.         $iVal = -1;
  3.         for ($i=1900; $i<=1969; $i++) {
  4.             # Check for this year string in date
  5.             $strYear = (string)$i;
  6.             if (!(strpos($strInput, $strYear)===false)) {
  7.                 $replYear = $strYear;
  8.                 $yearSkew = 1970 - $i;
  9.                 $strInput = str_replace($strYear, "1970", $strInput);
  10.             };
  11.         };
  12.         $iVal = strtotime($strInput);
  13.         if ($yearSkew > 0) {
  14.             $numSecs = (60 * 60 * 24 * 365 * $yearSkew);
  15.             $iVal = $iVal - $numSecs;
  16.             $numLeapYears = 0;        # Work out number of leap years in period
  17.             for ($j=$replYear; $j<=1969; $j++) {
  18.                 $thisYear = $j;
  19.                 $isLeapYear = false;
  20.                 # Is div by 4?
  21.                 if (($thisYear % 4) == 0) {
  22.                     $isLeapYear = true;
  23.                 };
  24.                 # Is div by 100?
  25.                 if (($thisYear % 100) == 0) {
  26.                     $isLeapYear = false;
  27.                 };
  28.                 # Is div by 1000?
  29.                 if (($thisYear % 1000) == 0) {
  30.                     $isLeapYear = true;
  31.                 };
  32.                 if ($isLeapYear == true) {
  33.                     $numLeapYears++;
  34.                 };
  35.             };
  36.             $iVal = $iVal - (60 * 60 * 24 * $numLeapYears);
  37.         };
  38.         return($iVal);
  39.     }
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Re: Date pre-1970, strtotime and safestrtotime nor mktime is of any help

Click to Expand / Collapse  Quote originally posted by almostbob ...
There is an add in library for this function,
not sure how good it is,
http://phplens.com/phpeverywhere/node/view/16
Thanks almostbob for the refernce link and knowledge. Sure, I would try it out. For now, I managed it some how but would like to try out something that is the right approach. Thanks once again.
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Re: Date pre-1970, strtotime and safestrtotime nor mktime is of any help

In case you want to make a custom function, the following code will do the job but is really slow. But this will give you something to play with.
php Syntax (Toggle Plain Text)
  1. <?
  2. function get_date($date,$timestamp=false) {
  3.     if ($timestamp==false) {
  4.         $timestamp=time();
  5.         } else {
  6.         $timestamp=round($timestamp);
  7.         }
  8.     if ($timestamp>=0) {
  9.         return date($date,$timestamp);
  10.         } else {
  11.         if ($timestamp<-100000000)  { die('This timestamp will take too long to calculate'); }
  12.         //calculate negative time
  13.         $year=1970;
  14.         for ($i=-1;$i>$timestamp;) { //year loop
  15.             $year--;
  16.             for ($k=31; $k>0;$k--) { //month loop (December)
  17.                 $month=12;
  18.                 $day=$k;
  19.                 for ($l=24; $l>0;$l--) {
  20.                     $hour=$l;
  21.                     for ($m=59; $m>-1;$m--) {
  22.                         $minute=$m;
  23.                         for ($n=59; $n>-1;$n--, $i--) {
  24.                             $second=$n;
  25.                             if ($i==$timestamp) { break;break;break;break;break; }
  26.                             }
  27.                         if ($i==$timestamp) { break;break;break;break; }
  28.                         }
  29.                     if ($i==$timestamp) { break;break;break; }
  30.                     }
  31.                 if ($i==$timestamp) { break;break; }
  32.                 }
  33.             if ($i==$timestamp) { break; }
  34.             for ($k=30; $k>0;$k--) { //month loop (November)
  35.                 $month=11;
  36.                 $day=$k;
  37.                 for ($l=24; $l>0;$l--) {
  38.                     $hour=$l;
  39.                     for ($m=59; $m>-1;$m--) {
  40.                         $minute=$m;
  41.                         for ($n=59; $n>-1;$n--, $i--) {
  42.                             $second=$n;
  43.                             if ($i==$timestamp) { break;break;break;break;break; }
  44.                             }
  45.                         if ($i==$timestamp) { break;break;break;break; }
  46.                         }
  47.                     if ($i==$timestamp) { break;break;break; }
  48.                     }
  49.                 if ($i==$timestamp) { break;break; }
  50.                 }
  51.             if ($i==$timestamp) { break; }
  52.             for ($k=31; $k>0;$k--) { //month loop (October)
  53.                 $month=10;
  54.                 $day=$k;
  55.                 for ($l=24; $l>0;$l--) {
  56.                     $hour=$l;
  57.                     for ($m=59; $m>-1;$m--) {
  58.                         $minute=$m;
  59.                         for ($n=59; $n>-1;$n--, $i--) {
  60.                             $second=$n;
  61.                             if ($i==$timestamp) { break;break;break;break;break; }
  62.                             }
  63.                         if ($i==$timestamp) { break;break;break;break; }
  64.                         }
  65.                     if ($i==$timestamp) { break;break;break; }
  66.                     }
  67.                 if ($i==$timestamp) { break;break; }
  68.                 }
  69.             if ($i==$timestamp) { break; }
  70.             for ($k=30; $k>0;$k--) { //month loop (September)
  71.                 $month=9;
  72.                 $day=$k;
  73.                 for ($l=24; $l>0;$l--) {
  74.                     $hour=$l;
  75.                     for ($m=59; $m>-1;$m--) {
  76.                         $minute=$m;
  77.                         for ($n=59; $n>-1;$n--, $i--) {
  78.                             $second=$n;
  79.                             if ($i==$timestamp) { break;break;break;break;break; }
  80.                             }
  81.                         if ($i==$timestamp) { break;break;break;break; }
  82.                         }
  83.                     if ($i==$timestamp) { break;break;break; }
  84.                     }
  85.                 if ($i==$timestamp) { break;break; }
  86.                 }
  87.             if ($i==$timestamp) { break; }
  88.             for ($k=31; $k>0;$k--) { //month loop (August)
  89.                 $month=8;
  90.                 $day=$k;
  91.                 for ($l=24; $l>0;$l--) {
  92.                     $hour=$l;
  93.                     for ($m=59; $m>-1;$m--) {
  94.                         $minute=$m;
  95.                         for ($n=59; $n>-1;$n--, $i--) {
  96.                             $second=$n;
  97.                             if ($i==$timestamp) { break;break;break;break;break; }
  98.                             }
  99.                         if ($i==$timestamp) { break;break;break;break; }
  100.                         }
  101.                     if ($i==$timestamp) { break;break;break; }
  102.                     }
  103.                 if ($i==$timestamp) { break;break; }
  104.                 }
  105.             if ($i==$timestamp) { break; }
  106.             for ($k=31; $k>0;$k--) { //month loop (July)
  107.                 $month=7;
  108.                 $day=$k;
  109.                 for ($l=24; $l>0;$l--) {
  110.                     $hour=$l;
  111.                     for ($m=59; $m>-1;$m--) {
  112.                         $minute=$m;
  113.                         for ($n=59; $n>-1;$n--, $i--) {
  114.                             $second=$n;
  115.                             if ($i==$timestamp) { break;break;break;break;break; }
  116.                             }
  117.                         if ($i==$timestamp) { break;break;break;break; }
  118.                         }
  119.                     if ($i==$timestamp) { break;break;break; }
  120.                     }
  121.                 if ($i==$timestamp) { break;break; }
  122.                 }
  123.             if ($i==$timestamp) { break; }
  124.             for ($k=30; $k>0;$k--) { //month loop (June)
  125.                 $month=6;
  126.                 $day=$k;
  127.                 for ($l=24; $l>0;$l--) {
  128.                     $hour=$l;
  129.                     for ($m=59; $m>-1;$m--) {
  130.                         $minute=$m;
  131.                         for ($n=59; $n>-1;$n--, $i--) {
  132.                             $second=$n;
  133.                             if ($i==$timestamp) { break;break;break;break;break; }
  134.                             }
  135.                         if ($i==$timestamp) { break;break;break;break; }
  136.                         }
  137.                     if ($i==$timestamp) { break;break;break; }
  138.                     }
  139.                 if ($i==$timestamp) { break;break; }
  140.                 }
  141.             if ($i==$timestamp) { break; }
  142.             for ($k=31; $k>0;$k--) { //month loop (May)
  143.                 $month=5;
  144.                 $day=$k;
  145.                 for ($l=24; $l>0;$l--) {
  146.                     $hour=$l;
  147.                     for ($m=59; $m>-1;$m--) {
  148.                         $minute=$m;
  149.                         for ($n=59; $n>-1;$n--, $i--) {
  150.                             $second=$n;
  151.                             if ($i==$timestamp) { break;break;break;break;break; }
  152.                             }
  153.                         if ($i==$timestamp) { break;break;break;break; }
  154.                         }
  155.                     if ($i==$timestamp) { break;break;break; }
  156.                     }
  157.                 if ($i==$timestamp) { break;break; }
  158.                 }
  159.             if ($i==$timestamp) { break; }
  160.             for ($k=30; $k>0;$k--) { //month loop (April)
  161.                 $month=4;
  162.                 $day=$k;
  163.                 for ($l=24; $l>0;$l--) {
  164.                     $hour=$l;
  165.                     for ($m=59; $m>-1;$m--) {
  166.                         $minute=$m;
  167.                         for ($n=59; $n>-1;$n--, $i--) {
  168.                             $second=$n;
  169.                             if ($i==$timestamp) { break;break;break;break;break; }
  170.                             }
  171.                         if ($i==$timestamp) { break;break;break;break; }
  172.                         }
  173.                     if ($i==$timestamp) { break;break;break; }
  174.                     }
  175.                 if ($i==$timestamp) { break;break; }
  176.                 }
  177.             if ($i==$timestamp) { break; }
  178.             for ($k=31; $k>0;$k--) { //month loop (March)
  179.                 $month=3;
  180.                 $day=$k;
  181.                 for ($l=24; $l>0;$l--) {
  182.                     $hour=$l;
  183.                     for ($m=59; $m>-1;$m--) {
  184.                         $minute=$m;
  185.                         for ($n=59; $n>-1;$n--, $i--) {
  186.                             $second=$n;
  187.                             if ($i==$timestamp) { break;break;break;break;break; }
  188.                             }
  189.                         if ($i==$timestamp) { break;break;break;break; }
  190.                         }
  191.                     if ($i==$timestamp) { break;break;break; }
  192.                     }
  193.                 if ($i==$timestamp) { break;break; }
  194.                 }
  195.             if ($i==$timestamp) { break; }
  196.             if (round((1972-$year)/4)==((1972-$year)/4)) {
  197.                 $j=29;
  198.                 } else {
  199.                 $j=28;
  200.                 }
  201.             for ($k=$j; $k>0;$k--) { //month loop (February)
  202.                 $month=2;
  203.                 $day=$k;
  204.                 for ($l=24; $l>0;$l--) {
  205.                     $hour=$l;
  206.                     for ($m=59; $m>-1;$m--) {
  207.                         $minute=$m;
  208.                         for ($n=59; $n>-1;$n--, $i--) {
  209.                             $second=$n;
  210.                             if ($i==$timestamp) { break;break;break;break;break; }
  211.                             }
  212.                         if ($i==$timestamp) { break;break;break;break; }
  213.                         }
  214.                     if ($i==$timestamp) { break;break;break; }
  215.                     }
  216.                 if ($i==$timestamp) { break;break; }
  217.                 }
  218.             if ($i==$timestamp) { break; }
  219.             for ($k=31; $k>0;$k--) { //month loop (January)
  220.                 $month=1;
  221.                 $day=$k;
  222.                 for ($l=24; $l>0;$l--) {
  223.                     $hour=$l;
  224.                     for ($m=59; $m>-1;$m--) {
  225.                         $minute=$m;
  226.                         for ($n=59; $n>-1;$n--, $i--) {
  227.                             $second=$n;
  228.                             if ($i==$timestamp) { break;break;break;break;break; }
  229.                             }
  230.                         if ($i==$timestamp) { break;break;break;break; }
  231.                         }
  232.                     if ($i==$timestamp) { break;break;break; }
  233.                     }
  234.                 if ($i==$timestamp) { break;break; }
  235.                 }
  236.             if ($i==$timestamp) { break; }
  237.  
  238.             }
  239.         }
  240.         if ($hour>12) {
  241.             $ampm='AM';
  242.             $pmam='am';
  243.             } else {
  244.             $ampm='PM';
  245.             $pmam='pm';
  246.             }
  247.         if ($hour>12) {
  248.             $hr=$hour-12;
  249.             } else {
  250.             $hr=$hour;
  251.             }
  252.         if ($second<10) {
  253.             $second='0'.$second;
  254.             }
  255.         if ($minute<10) {
  256.             $minute='0'.$minute;
  257.             }
  258.         return str_replace(array('Y','n','j','H','h','i','s','a','A'),array($year,$month,$day,$hour,$hr,$minute,$second,$pmam,$ampm),$date);
  259.     }
  260. echo get_date('Y-n-j.....h:i:s A',-10000000);
  261. ?>
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Re: Date pre-1970, strtotime and safestrtotime nor mktime is of any help

Just for anybody reading this thread in the future, I have managed to complete my script with better reliability and is as follows:
php Syntax (Toggle Plain Text)
  1. function get_date($date,$timestamp=false) {
  2.     if ($timestamp==false) {
  3.         $timestamp=time();
  4.         } else {
  5.         $timestamp=round($timestamp);
  6.         }
  7.     if ($timestamp>=0) {
  8.         return date($date,$timestamp);
  9.         } else {
  10.         if ($timestamp<-62168515200)  { die('This timestamp was during before the year zero there for will not be calculated'); }
  11.         //calculate negative time
  12.         $year=1970;
  13.         for ($i=-1;$i>$timestamp;) { //year loop
  14.             $year--;
  15.             for ($k=31; $k>0;$k--) { //month loop (December)
  16.                 $month=12;
  17.                 $day=$k;
  18.                 if (($i-86400)>$timestamp) {
  19.                     $i-=86400;
  20.                     $l=24; $hour=24;
  21.                     $m=59; $minute=59;
  22.                     $n=59; $second=59;
  23.                     } else {
  24.                     for ($l=24; $l>0;$l--) {
  25.                         $hour=$l;
  26.                         for ($m=59; $m>-1;$m--) {
  27.                             $minute=$m;
  28.                             for ($n=59; $n>-1;$n--, $i--) {
  29.                                 $second=$n;
  30.                                 if ($i==$timestamp) { break;break;break;break;break; }
  31.                                 }
  32.                             if ($i==$timestamp) { break;break;break;break; }
  33.                             }
  34.                         if ($i==$timestamp) { break;break;break; }
  35.                         }
  36.                     }
  37.                 if ($i==$timestamp) { break;break; }
  38.                 }
  39.             if ($i==$timestamp) { break; }
  40.             for ($k=30; $k>0;$k--) { //month loop (November)
  41.                 $month=11;
  42.                 $day=$k;
  43.                 if (($i-86400)>$timestamp) {
  44.                     $i-=86400;
  45.                     $l=24; $hour=24;
  46.                     $m=59; $minute=59;
  47.                     $n=59; $second=59;
  48.                     } else {
  49.                     for ($l=24; $l>0;$l--) {
  50.                         $hour=$l;
  51.                         for ($m=59; $m>-1;$m--) {
  52.                             $minute=$m;
  53.                             for ($n=59; $n>-1;$n--, $i--) {
  54.                                 $second=$n;
  55.                                 if ($i==$timestamp) { break;break;break;break;break; }
  56.                                 }
  57.                             if ($i==$timestamp) { break;break;break;break; }
  58.                             }
  59.                         if ($i==$timestamp) { break;break;break; }
  60.                         }
  61.                     }
  62.                 if ($i==$timestamp) { break;break; }
  63.                 }
  64.             if ($i==$timestamp) { break; }
  65.             for ($k=31; $k>0;$k--) { //month loop (October)
  66.                 $month=10;
  67.                 $day=$k;
  68.                 if (($i-86400)>$timestamp) {
  69.                     $i-=86400;
  70.                     $l=24; $hour=24;
  71.                     $m=59; $minute=59;
  72.                     $n=59; $second=59;
  73.                     } else {
  74.                     for ($l=24; $l>0;$l--) {
  75.                         $hour=$l;
  76.                         for ($m=59; $m>-1;$m--) {
  77.                             $minute=$m;
  78.                             for ($n=59; $n>-1;$n--, $i--) {
  79.                                 $second=$n;
  80.                                 if ($i==$timestamp) { break;break;break;break;break; }
  81.                                 }
  82.                             if ($i==$timestamp) { break;break;break;break; }
  83.                             }
  84.                         if ($i==$timestamp) { break;break;break; }
  85.                         }
  86.                     }
  87.                 if ($i==$timestamp) { break;break; }
  88.                 }
  89.             if ($i==$timestamp) { break; }
  90.             for ($k=30; $k>0;$k--) { //month loop (September)
  91.                 $month=9;
  92.                 $day=$k;
  93.                 if (($i-86400)>$timestamp) {
  94.                     $i-=86400;
  95.                     $l=24; $hour=24;
  96.                     $m=59; $minute=59;
  97.                     $n=59; $second=59;
  98.                     } else {
  99.                     for ($l=24; $l>0;$l--) {
  100.                         $hour=$l;
  101.                         for ($m=59; $m>-1;$m--) {
  102.                             $minute=$m;
  103.                             for ($n=59; $n>-1;$n--, $i--) {
  104.                                 $second=$n;
  105.                                 if ($i==$timestamp) { break;break;break;break;break; }
  106.                                 }
  107.                             if ($i==$timestamp) { break;break;break;break; }
  108.                             }
  109.                         if ($i==$timestamp) { break;break;break; }
  110.                         }
  111.                     }
  112.                 if ($i==$timestamp) { break;break; }
  113.                 }
  114.             if ($i==$timestamp) { break; }
  115.             for ($k=31; $k>0;$k--) { //month loop (August)
  116.                 $month=8;
  117.                 $day=$k;
  118.                 if (($i-86400)>$timestamp) {
  119.                     $i-=86400;
  120.                     $l=24; $hour=24;
  121.                     $m=59; $minute=59;
  122.                     $n=59; $second=59;
  123.                     } else {
  124.                     for ($l=24; $l>0;$l--) {
  125.                         $hour=$l;
  126.                         for ($m=59; $m>-1;$m--) {
  127.                             $minute=$m;
  128.                             for ($n=59; $n>-1;$n--, $i--) {
  129.                                 $second=$n;
  130.                                 if ($i==$timestamp) { break;break;break;break;break; }
  131.                                 }
  132.                             if ($i==$timestamp) { break;break;break;break; }
  133.                             }
  134.                         if ($i==$timestamp) { break;break;break; }
  135.                         }
  136.                     }
  137.                 if ($i==$timestamp) { break;break; }
  138.                 }
  139.             if ($i==$timestamp) { break; }
  140.             for ($k=31; $k>0;$k--) { //month loop (July)
  141.                 $month=7;
  142.                 $day=$k;
  143.                 if (($i-86400)>$timestamp) {
  144.                     $i-=86400;
  145.                     $l=24; $hour=24;
  146.                     $m=59; $minute=59;
  147.                     $n=59; $second=59;
  148.                     } else {
  149.                     for ($l=24; $l>0;$l--) {
  150.                         $hour=$l;
  151.                         for ($m=59; $m>-1;$m--) {
  152.                             $minute=$m;
  153.                             for ($n=59; $n>-1;$n--, $i--) {
  154.                                 $second=$n;
  155.                                 if ($i==$timestamp) { break;break;break;break;break; }
  156.                                 }
  157.                             if ($i==$timestamp) { break;break;break;break; }
  158.                             }
  159.                         if ($i==$timestamp) { break;break;break; }
  160.                         }
  161.                     }
  162.                 if ($i==$timestamp) { break;break; }
  163.                 }
  164.             if ($i==$timestamp) { break; }
  165.             for ($k=30; $k>0;$k--) { //month loop (June)
  166.                 $month=6;
  167.                 $day=$k;
  168.                 if (($i-86400)>$timestamp) {
  169.                     $i-=86400;
  170.                     $l=24; $hour=24;
  171.                     $m=59; $minute=59;
  172.                     $n=59; $second=59;
  173.                     } else {
  174.                     for ($l=24; $l>0;$l--) {
  175.                         $hour=$l;
  176.                         for ($m=59; $m>-1;$m--) {
  177.                             $minute=$m;
  178.                             for ($n=59; $n>-1;$n--, $i--) {
  179.                                 $second=$n;
  180.                                 if ($i==$timestamp) { break;break;break;break;break; }
  181.                                 }
  182.                             if ($i==$timestamp) { break;break;break;break; }
  183.                             }
  184.                         if ($i==$timestamp) { break;break;break; }
  185.                         }
  186.                     }
  187.                 if ($i==$timestamp) { break;break; }
  188.                 }
  189.             if ($i==$timestamp) { break; }
  190.             for ($k=31; $k>0;$k--) { //month loop (May)
  191.                 $month=5;
  192.                 $day=$k;
  193.                 if (($i-86400)>$timestamp) {
  194.                     $i-=86400;
  195.                     $l=24; $hour=24;
  196.                     $m=59; $minute=59;
  197.                     $n=59; $second=59;
  198.                     } else {
  199.                     for ($l=24; $l>0;$l--) {
  200.                         $hour=$l;
  201.                         for ($m=59; $m>-1;$m--) {
  202.                             $minute=$m;
  203.                             for ($n=59; $n>-1;$n--, $i--) {
  204.                                 $second=$n;
  205.                                 if ($i==$timestamp) { break;break;break;break;break; }
  206.                                 }
  207.                             if ($i==$timestamp) { break;break;break;break; }
  208.                             }
  209.                         if ($i==$timestamp) { break;break;break; }
  210.                         }
  211.                     }
  212.                 if ($i==$timestamp) { break;break; }
  213.                 }
  214.             if ($i==$timestamp) { break; }
  215.             for ($k=30; $k>0;$k--) { //month loop (April)
  216.                 $month=4;
  217.                 $day=$k;
  218.                 if (($i-86400)>$timestamp) {
  219.                     $i-=86400;
  220.                     $l=24; $hour=24;
  221.                     $m=59; $minute=59;
  222.                     $n=59; $second=59;
  223.                     } else {
  224.                     for ($l=24; $l>0;$l--) {
  225.                         $hour=$l;
  226.                         for ($m=59; $m>-1;$m--) {
  227.                             $minute=$m;
  228.                             for ($n=59; $n>-1;$n--, $i--) {
  229.                                 $second=$n;
  230.                                 if ($i==$timestamp) { break;break;break;break;break; }
  231.                                 }
  232.                             if ($i==$timestamp) { break;break;break;break; }
  233.                             }
  234.                         if ($i==$timestamp) { break;break;break; }
  235.                         }
  236.                     }
  237.                 if ($i==$timestamp) { break;break; }
  238.                 }
  239.             if ($i==$timestamp) { break; }
  240.             for ($k=31; $k>0;$k--) { //month loop (March)
  241.                 $month=3;
  242.                 $day=$k;
  243.                 if (($i-86400)>$timestamp) {
  244.                     $i-=86400;
  245.                     $l=24; $hour=24;
  246.                     $m=59; $minute=59;
  247.                     $n=59; $second=59;
  248.                     } else {
  249.                     for ($l=24; $l>0;$l--) {
  250.                         $hour=$l;
  251.                         for ($m=59; $m>-1;$m--) {
  252.                             $minute=$m;
  253.                             for ($n=59; $n>-1;$n--, $i--) {
  254.                                 $second=$n;
  255.                                 if ($i==$timestamp) { break;break;break;break;break; }
  256.                                 }
  257.                             if ($i==$timestamp) { break;break;break;break; }
  258.                             }
  259.                         if ($i==$timestamp) { break;break;break; }
  260.                         }
  261.                     }
  262.                 if ($i==$timestamp) { break;break; }
  263.                 }
  264.             if ($i==$timestamp) { break; }
  265.             if (round((1972-$year)/4)==((1972-$year)/4)) {
  266.                 $j=29;
  267.                 } else {
  268.                 $j=28;
  269.                 }
  270.             for ($k=$j; $k>0;$k--) { //month loop (February)
  271.                 $month=2;
  272.                 $day=$k;
  273.                 if (($i-86400)>$timestamp) {
  274.                     $i-=86400;
  275.                     $l=24; $hour=24;
  276.                     $m=59; $minute=59;
  277.                     $n=59; $second=59;
  278.                     } else {
  279.                     for ($l=24; $l>0;$l--) {
  280.                         $hour=$l;
  281.                         for ($m=59; $m>-1;$m--) {
  282.                             $minute=$m;
  283.                             for ($n=59; $n>-1;$n--, $i--) {
  284.                                 $second=$n;
  285.                                 if ($i==$timestamp) { break;break;break;break;break; }
  286.                                 }
  287.                             if ($i==$timestamp) { break;break;break;break; }
  288.                             }
  289.                         if ($i==$timestamp) { break;break;break; }
  290.                         }
  291.                     }
  292.                 if ($i==$timestamp) { break;break; }
  293.                 }
  294.             if ($i==$timestamp) { break; }
  295.             for ($k=31; $k>0;$k--) { //month loop (January)
  296.                 $month=1;
  297.                 $day=$k;
  298.                 if (($i-86400)>$timestamp) {
  299.                     $i-=86400;
  300.                     $l=24; $hour=24;
  301.                     $m=59; $minute=59;
  302.                     $n=59; $second=59;
  303.                     } else {
  304.                     for ($l=24; $l>0;$l--) {
  305.                         $hour=$l;
  306.                         for ($m=59; $m>-1;$m--) {
  307.                             $minute=$m;
  308.                             for ($n=59; $n>-1;$n--, $i--) {
  309.                                 $second=$n;
  310.                                 if ($i==$timestamp) { break;break;break;break;break; }
  311.                                 }
  312.                             if ($i==$timestamp) { break;break;break;break; }
  313.                             }
  314.                         if ($i==$timestamp) { break;break;break; }
  315.                         }
  316.                     }
  317.                 if ($i==$timestamp) { break;break; }
  318.                 }
  319.             if ($i==$timestamp) { break; }
  320.  
  321.             }
  322.         }
  323.         if ($hour>12) {
  324.             $ampm='PM';
  325.             $pmam='pm';
  326.             } else {
  327.             $ampm='AM';
  328.             $pmam='am';
  329.             }
  330.         if ($hour>12) {
  331.             $hr=$hour-12;
  332.             } else {
  333.             $hr=$hour;
  334.             }
  335.         if ($second<10) {
  336.             $second='0'.$second;
  337.             }
  338.         if ($minute<10) {
  339.             $minute='0'.$minute;
  340.             }
  341.         return str_replace(array('Y','n','j','H','h','i','s','a','A'),array($year,$month,$day,$hour,$hr,$minute,$second,$pmam,$ampm),$date);
  342.     }
  343.  
  344.  
  345. //now to use it.
  346. echo get_date('Y-n-j.....h:i:s A',-172800);
  347. ?>
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This thread is solved

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