PHP Generated date -> Javascript countdown -


i'm making site informatics project of mine. want make:

  1. php script outputs date can stored in database.
  2. javascript counts down date. if it's finished want display hyperlink (simple html anchor).

item 1 has been done, having difficult time achieving item 2. learned html, mysql , php far. i'm learning javascript @ moment. examples on site difficult understand , there must easier way it. want understand code.

php (no edit needed):

function klaar_bouw($getal=0) {       $nu = strtotime("now");       $dag = floor($getal / 86400);       $uur  = floor(($getal % 86400) / 3600);       $min = floor(($getal % 3600) / 60);       $sec = ($getal % 60);       $nieuw = date('d-m-y h:i:s', mktime(       date('h',$nu)+$uur,       date('i',$nu)+$min,       date('s',$nu)+$sec,       date('m',$nu),       date('d',$nu)+$dag,       date('y',$nu))       );       return $nieuw;               } $bouwklaar = klaar_bouw( -! random number in seconds !-); echo"$bouwklaar";

javascript:

function bouwen(bouwklaar) {     var bouwtijd = new date(bouwklaar);      var dag = (getutcday(bouwtijd) - getutcday());     var uur = (getutchours(bouwtijd) - getutchours());     var min = (getutcminutes(bouwtijd) - getutcminutes());     var sec = (getutcseconds(bouwtijd) - getutcseconds());      return dag + ":" + uur + ":" + min + ":" + sec; }  setinterval(function () {     var bouw = bouwen('2013, 05, 21, 20, 00, 00');     document.getelementbyid("datum").innerhtml = bouw; }, 500);

output format: dd:hh:mm:ss (counting down 0, output html anchor link)

take @ jsfiddle. several issues:

  • you using new date function incorrectly. function receives several integer inputs, not formatted string.
  • notice how days, minutes, hours, , seconds calculated. should subtract dates first, retrieve results getutc functions.

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